This PR adds initial support for defining slash commands for the
Assistant from extensions.

Slash commands are defined in an extension's `extension.toml`:

```toml
[slash_commands.gleam-project]
description = "Returns information about the current Gleam project."
requires_argument = false
```

and then executed via the `run_slash_command` method on the `Extension`
trait:

```rs
impl Extension for GleamExtension {
    // ...

    fn run_slash_command(
        &self,
        command: SlashCommand,
        _argument: Option<String>,
        worktree: &zed::Worktree,
    ) -> Result<Option<String>, String> {
        match command.name.as_str() {
            "gleam-project" => Ok(Some("Yayyy".to_string())),
            command => Err(format!("unknown slash command: \"{command}\"")),
        }
    }
}
```

Release Notes:

- N/A

Release Notes:

- Enabled Zed tasks on remote projects with ssh connection string
specified

---------

Co-authored-by: Conrad Irwin <conrad@zed.dev>

Closes https://github.com/zed-industries/zed/issues/12234 by making both
default keymap and the menu `Delete` action declarations to have the
same `skip_prompt` value.
`Trash` action got more explicit `skip_prompt` declarations in this PR,
but those were the defaults already, so not changed.

Now, `Delete` action in the project panel will always show a prompt
before removing, both on the keystroke and menu item click.
To note, VSCode does skips prompt for the `Trash` action, so we might
want to change that too (later?), the PR does not alter it.

Release Notes:

- Shows Delete action binding keys in the project panel context menu
([12234](https://github.com/zed-industries/zed/issues/12234))

In #12003 we found ourselves in need for precise region tracking in
which a given runnable has an effect in order to grab variables from it.
This PR makes it so that in task modal all task variables from queries
overlapping current cursor position.
However, in the process of working on that I've found that we cannot
always use a top-level capture to represent the full match range of
runnable (which has been my assumption up to this point). Tree-sitter
captures cannot capture sibling groups; we did just that in Rust
queries.

Thankfully, none of the extensions are affected as in them, a capture is
always attached to single node. This PR adds annotations to them
nonetheless; we'll be able to get rid of top-level captures in extension
runnables.scm once this PR is in stable version of Zed.


Release Notes:

- N/A

This PR adds the missing `lints.workspace` setting to the `assistant`
crate's `Cargo.toml`.

Release Notes:

- N/A

This PR extracts the `SlashCommand` trait (along with the
`SlashCommandRegistry`) from the `assistant` crate.

This will allow us to register slash commands from extensions without
having to make `extension` depend on `assistant`.

Release Notes:

- N/A

Fixes indent guides when using tabs, 
Fixes: #12209, fixes #12210

Release Notes:

- N/A

Fix path to the `configuring-zed` page in Python language documentation.

Release Notes:

- N/A

Release Notes:

- Added ZED_RELATIVE_FILE (path to current file relative to worktree
root) and ZED_DIRNAME (path to the directory containing current file)
task variables.

The default keymap uses alt-enter for `SelectAllMatches` for `context:
BufferSearchBar`.

Jetbrains keymap uses alt-enter for `ToggleCodeActions` for `context:
Editor`.

When focusing on search bar, currently alt-enter does not perform
`SelectAllMatches`, whereas `ToggleCodeActions` is triggered instead,
because search bar's text input element has `context: Editor
mode=single_line`.

This PR restricts `ToggleCodeActions` to `Editor (full mode)` context to
allow `SelectAllMatches` to be triggered for alt-enter when the search
bar is active.

Release Notes:

- Fixed alt-enter with JetBrains keymap ignoring `search::SelectAllMatches` in certain contexts ([11840](https://github.com/zed-industries/zed/issues/11840))

Release Notes:

- N/A

---------

Co-authored-by: Kirill Bulatov <kirill@zed.dev>

Allows information popovers to display while autocomplete suggestions
are also being displayed.

Before: 


https://github.com/zed-industries/zed/assets/50590465/a61f0b4e-1521-42de-84fd-c5a3586b74ab

After:


https://github.com/zed-industries/zed/assets/50590465/ad2daae7-aebc-4c71-ad4c-f9d2deb6d0d0

Release Notes:
- Allow hover and completion popovers to appear at the same time ([12152](https://github.com/zed-industries/zed/issues/12152))

Release Notes:

- Preserve order of worktrees in project
([#10883](https://github.com/zed-industries/zed/issues/10883)).
- Enable drag-and-drop reordering for project worktrees

Note: worktree order is not synced during collaboration but guests can
reorder their own project panels.

![Reordering
worktrees](https://github.com/zed-industries/zed/assets/1347854/1c63d83c-5d4e-4b55-b840-bfbf32521b2a)

---------

Co-authored-by: Kirill Bulatov <kirill@zed.dev>

This allows you to run all the tests inside the `mod tests` block. 
Fixes #11967.

<img width="366" alt="Screenshot 2024-05-18 at 16 07 32"
src="https://github.com/zed-industries/zed/assets/62463826/01fc378c-1546-421d-8250-fe0227c1e5a0">

<img width="874" alt="Screenshot 2024-05-18 at 16 37 21"
src="https://github.com/zed-industries/zed/assets/62463826/4a880b91-df84-4917-a16e-5d5fe20e22ac">

Release Notes:

- Added runnable icon for Rust `#[cfg(test)] mod tests` blocks
([#11967](https://github.com/zed-industries/zed/issues/11967)).

Highlight files ending in `mdwn` as Markdown.

(Ikiwiki uses `mdwn` as the file extension for Markdown.)

This pull request was inspired by this one:

- #1209/

Release Notes:

- Added ".mdwn" as a Markdown file extension.

Release Notes:

- N/A

Co-authored-by: Nathan <nathan@zed.dev>

Release Notes:

- vim: Added `]d/[d` for go to prev/next diagnostic
- vim: Added `]c/[c` to go to prev/next git change (`:diff` and
`:revert` show the diff and revert it)
- vim: Added `g cmd-d` for go to implementation

Release Notes:

- N/A

Release Notes:

- N/A

We have implemented XKB Compose for Wayland, but we forgot to implement
it for X11.
Fixed #12089

This pull request replaces the static `⋯` character we used to insert
when folding a range with a custom render function that return an
`AnyElement`. We plan to use this in the assistant, but for now this
should be behavior-preserving.

Release Notes:

- N/A

---------

Co-authored-by: Nathan <nathan@zed.dev>
Co-authored-by: Conrad <conrad@zed.dev>

This PR updates the Gleam runnables to detect tests using the `describe`
API in Startest.

This isn't entirely functional yet, as it is still just uses the test
function name to run the tests (which Startest doesn't yet support).

Release Notes:

- N/A

Release Notes:

- Fixed a panic that occurred when using the `assistant: quote
selection` command while signed out.

Release Notes:

- fixed positioning of whitespace dots on multibyte text
([#10332](https://github.com/zed-industries/zed/issues/10332)).

This PR fixes some issues preventing `rustfmt` from running properly in
`dev_servers.rs`.

The culprit was some long strings being inlined.

Release Notes:

- N/A

Caching the active indent range allows us to not re-compute the indent
range when it is not necessary

Release Notes:

- N/A

Added a new action `editor: Toggle indent guides`, to show/hide indent
guides

Release Notes:

- N/A

Builds on top of existing work from #2249, but here's a showcase:


https://github.com/zed-industries/zed/assets/53836821/4b346965-6654-496c-b379-75425d9b493f

TODO:
- [x] handle line wrapping
- [x] implement handling in multibuffer (crashes currently)
- [x] add configuration option
- [x] new theme properties? What colors to use?
- [x] Possibly support indents with different colors or background
colors
- [x] investigate edge cases (e.g. indent guides and folds continue on
empty lines even if the next indent is different)
- [x] add more tests (also test `find_active_indent_index`)
- [x] docs (will do in a follow up PR)
- [x] benchmark performance impact

Release Notes:

- Added indent guides
([#5373](https://github.com/zed-industries/zed/issues/5373))

---------

Co-authored-by: Nate Butler <1714999+iamnbutler@users.noreply.github.com>
Co-authored-by: Remco <djsmits12@gmail.com>

Also: 
- Simplify open listener implementation
- Add set_global API to global traits

Release Notes:

- N/A

Release Notes:

- N/A

Release Notes:

- N/A

---------

Co-authored-by: Bennet <bennet@zed.dev>

![CleanShot 2024-05-22 at 18 20
45@2x](https://github.com/zed-industries/zed/assets/1789/dac9fcde-9fcb-4c40-b5da-ebdc847b3962)

Include the keybinding to help people discover how to submit from the
keyboard.

I'm also shifting from the word "Conversation" to "Context".

Release Notes:

- Added a send button to the assistant panel.

This PR updates the Zig extension to pin ZLS to v0.11.0, as the more
recent releases of ZLS don't have `.tar.gz` assets available.

Note that this depends on the next version of the `zed_extension_api`,
which has yet to be released.

Release Notes:

- N/A

This PR adds a new `github_release_by_tag_name` method to the
`zed_extension_api` to allow for retrieving a GitHub release by its tag
name.

Release Notes:

- N/A

This PR restricts usage of v0.0.7 of the `zed_extension_api` to dev
builds, for now.

As we're still making changes to it, we don't want to ship a version of
Zed to Preview/Stable that claims to support a yet-unreleased version of
the extension API.

Release Notes:

- N/A

This PR forks a new version of the `zed_extension_api` in preparation
for some upcoming changes that require breaking changes to the WIT.

Release Notes:

- N/A

---------

Co-authored-by: Max <max@zed.dev>

This PR replaces references to `language_overrides` in the docs with
just `languages`.

`language_overrides` is an alias for `languages`, and we want to move
towards just using `languages`.

Release Notes:

- N/A

Release Notes:

- N/A

Restructure prompts & the prompt library.

- Prompts are now written in markdown
- The prompt manager has a picker and editable prompts
- Saving isn't wired up yet
- This also removes the "Insert active prompt" button as this concept doesn't exist anymore, and will be replaced with slash commands.

I didn't staff flag this, but if you do play around with it expect it to still be pretty rough.

Release Notes:

- N/A

---------

Co-authored-by: Nathan Sobo <1789+nathansobo@users.noreply.github.com>
Co-authored-by: Antonio Scandurra <me@as-cii.com>

Tasks

* [x] remove old flaps and output when editing a slash command
* [x] the completing a command name that takes args, insert a space to
prepare for typing an arg
* [x] always trigger completions when  typing in a slash command
* [x] don't show line numbers
* [x] implement `prompt` command
* [x] `current-file` command
* [x] state gets corrupted on `duplicate line up` on a slash command
* [x] exclude slash command source from completion request

Next steps:
* show output token count in flap trailer
* add `/project` command that matches project ambient context
* delete ambient context

Release Notes:

- N/A

---------

Co-authored-by: Marshall <marshall@zed.dev>
Co-authored-by: Antonio Scandurra <me@as-cii.com>

Release Notes:

- N/A

Release Notes:

- vim: Fixed `shift-d` in visual and visual block mode.

Release Notes:

- N/A

This PR bumps the PHP extension to v0.0.4.

Changes:

- https://github.com/zed-industries/zed/pull/11514

Release Notes:

- N/A

This PR changes the interface of ContextProvider, allowing it to inspect
*all* variables set so far during the process of building
`TaskVariables`. This makes it possible to capture e.g. an identifier in
tree-sitter query, process it and then export it as a task variable.

Notably, the list of variables includes captures prefixed with leading
underscore; they are removed after all calls to `build_context`, but it
makes it possible to capture something and then conditionally preserve
it (and perhaps modify it).

Release Notes:

- N/A

This fixes #11361 and #8764 by making sure we pass a directory as
`WorkspaceFolder` to the language server.

We already compute the `working_dir` correctly when
`self.root_path.is_file()`, but we didn't use it.

Release Notes:

- Fixed language servers (such as `gopls`) not starting up correctly
when opening a single file in Zed.
([#11361](https://github.com/zed-industries/zed/issues/11361) and
[#8764](https://github.com/zed-industries/zed/issues/8764)).

I don't know whether there are any hard UI guidelines that dictate
whether this should be allowed or not, but I think it's very handy and
missed it.

I also think it makes sense to have this in a directory-centric editor
in which opening a directory creates a new window.

Release Notes:

- Added ability to create directory in open-file dialog on macOS.

![screenshot-2024-05-22-15 05
03@2x](https://github.com/zed-industries/zed/assets/1185253/939a2a88-16b2-4a91-a344-f73c5615d831)

When you press `V` to go into visual-line mode in Vim,
`selections.line_mode` is true and the selection contains _lines_.

But `$ZED_SELECTED_TEXT` always contained just the cursor location or
any non-line-mode selection that was previously made.

Release Notes:

- Fixed `$ZED_SELECTED_TEXT` variable in Tasks ignoring whether
visual-line-mode in Vim was used.

### This pull request adds the following:
- Missing mapping for the `yield` keyword.
- Outline scheme for `describe`, `it` and `test`
function_call_expressions (to support Pest runnable)
- Pest runnable support
- PHPUnit runnable support
- Task for running selected PHP code.


## Queries explanations

#### Query 1 (PHPUnit: Run specific method test):
1. Class is not abstract (because you cannot run tests from an abstract
class)
2. Class has `Test` suffix
3. Method has public modifier(or no modifiers, default is public)
4. Method has `test` prefix

#### Query 2 (PHPUnit: Run specific method test with `@test`
annotation):
1. Class is not abstract (because you cannot run tests from an abstract
class)
2. Class has `Test` suffix
3. Method has public modifier(or no modifiers, default is public)
4. Method has `@test` annotation

#### Query 3 (PHPUnit: Run specific method test with `#[Test]`
attribute):
1. Class is not abstract (because you cannot run tests from an abstract
class)
2. Class has `Test` suffix
3. Method has public modifier(or no modifiers, default is public)
4. Method has `#[Test]` attribute

#### Query 4 (PHPUnit: Run all tests inside the class):
1. Class is not abstract (because you cannot run tests from an abstract
class)
2. Class has `Test` suffix

#### Query 5 (Pest: Run function test)
1. Function expression has one of the following names: `describe`, `it`
or `test`
2. Function expression first argument is a string

### **PHPUnit: Example for valid test class**
<img width="549" alt="Screenshot 2024-05-08 at 10 41 34"
src="https://github.com/zed-industries/zed/assets/62463826/e84269de-4f53-410b-b93b-713f9448dc79">


### **PHPUnit: Example for invalid test class**
All the methods should be ignored because you cannot run tests on an
abstract class.
<img width="608" alt="Screenshot 2024-05-07 at 22 28 57"
src="https://github.com/zed-industries/zed/assets/62463826/8c6b3921-5266-4d88-ada5-5cd827bcf242">

### **Pest: Example**

https://github.com/zed-industries/zed/assets/62463826/bce133eb-0a6f-4ca2-9739-12d9169bb9d6

You should now see all your **Pest** tests inside the buffer symbols
modal.
![Screenshot 2024-05-08 at 22 51
25](https://github.com/zed-industries/zed/assets/62463826/9c818b74-383c-45e5-9b41-8dec92759a14)

Release Notes:

- Added test runnable detection for PHP (PHPUnit & Pest).
- Added task for running selected PHP code.
- Added `describe`, `test` and `it` functions to buffer symbols, to
support Pest runnable.
- Added `yield` keyword to PHP keyword mapping.

Small follow-ups for https://github.com/zed-industries/zed/pull/12063
and https://github.com/zed-industries/zed/pull/12103

Release Notes:

- N/A