This introduces multiple improvements to the drop targets.

## Hitbox shape
Currently, hitboxes are rectangles, where the vertical ones reach all
the way to the ends, which reduces the space for the horizontal ones,
making the hitboxes a bit awkward in the corners. This new approach just
determines the closest side.

Visual representation:
![Frame
3](https://github.com/zed-industries/zed/assets/1282767/1cd2ca31-d9d4-41dd-87fb-1a8fbb8b7fcc)

## Hitbox size
The width of the hitbox was currently always 8 rem all around. In setups
with many columns or rows, or when the font size was very large, this
could potentially overlap the center hitbox, not allowing to drop a tab
without another split. Now the width of the hitboxes are a fraction of
the smaller size of its parents width and height. This makes sure the
hitboxes have the same width all around, but never fully block the
center hitbox.

I've also made this value configurable through the new
`drop_target_size` config which takes a `f32` fraction and is set to 0.2
by default.

Not sure if this is worth mentioning, but this technically allows to
remove the split hitboxes all together by setting it to `0.0`, or
removing the center hitbox by setting it to any value `>=0.5`. Not that
this is necessary, but it would be possible now.

## Larger visualization
The visual overlay when using one of the side hitboxes were also `8em`
wide. Since their logical size now changed, and it can't currently be
represented with GPUI (without abusing the `canvas` element), I made the
visual feedback take half of the width or height of the available space,
just like how other editors do this.

Also, the opacity/alpha value set by a theme is currently ignored. This
change now respects the themes opacity for it!

## Respect alpha value
Currently, the alpha value of `drop_target.background` is ignored. Even
the default themes set a value that is overwritten by a hard coded
value. I have removed this hard coded value and it now respects the
alpha value.

This change affects existing themes, see
https://github.com/zed-industries/zed/pull/10643#issuecomment-2059641528


## ~~No more lag while dragging over gutter~~ Extracted into #10737
~~It looks like the editor had a small optimization to drop events when
hovering the gutter. This also happens while dragging a tab over the
gutter, and causes some stuttering. Please correct me if this wasn't
just a small optimization, but I could not derive a different reason for
this code to exist.~~

Here is a video that tries to show all those changes with a before on
the left, and the after on the right:


https://github.com/zed-industries/zed/assets/1282767/f97f3420-513f-410f-a1c8-7966429ad348


Release Notes:

- Added `drop_target_size` setting. This should be a fractional percent
(e.g., `0.5`).
- Improved the hitboxes for drop targets.
- Updated drop targets to respect the alpha channel of the
`drop_target.background` color.

To work properly, needs #10119 to be merged.



https://github.com/zed-industries/zed/assets/14981363/2bb0c51b-6c70-4b29-8baa-302fb4fb9e89



Release Notes:

- N/A

This PR brings `Direct Write` to Zed. Now, Zed first trys to query
dwrite interface, if not supported, which means runing on Windows below
win10 1703), will choose `cosmic` as a fallback text system.

This direct write text system supports:
- Full font features support
- Emoji support
- Default system fonts as fallback

### Font features


https://github.com/zed-industries/zed/assets/14981363/198eff88-47df-4bc8-a257-e3acf81fd61d

### Emoji

![Screenshot 2024-04-03
211354](https://github.com/zed-industries/zed/assets/14981363/a5bc5845-42e8-4af1-af7e-abba598c1e72)

**Note: input emoji through IME or IMM not working yet, copy paste emoji
works fine (will be fixed by #10125 )**

### Font fallback

I use `Zed mono` which dose not support chinese chars to test font
fallback



https://github.com/zed-industries/zed/assets/14981363/c97d0847-0ac5-47e6-aa00-f3ce6d1e50a5



Release Notes:

- N/A

This PR bumps the GLSL extension to v0.1.0.

Changes:

- #10694

Release Notes:

- N/A

<img width="691" alt="image"
src="https://github.com/zed-industries/zed/assets/2588851/c5e02d12-d1e4-4407-971c-72de7e6599f0">

@mikayla-maki the extension lists you as the original author.

Release Notes:

- N/A

---------

Co-authored-by: Marshall Bowers <elliott.codes@gmail.com>

https://github.com/zed-industries/zed/assets/53836821/9a57885e-83b0-49fb-b3a8-0a7868566b85


Release Notes:

- Markdown preview now re-renders when another collaborator changes the
content of channel notes

Release Notes:

- N/A

Fixes https://github.com/zed-industries/zed/issues/4567

Release Notes:

- Fixed multiple terminals being opened on `workspace::NewTerminal`
calls ([4567](https://github.com/zed-industries/zed/issues/4567))

Release Notes:

- Added a setting to determine the minimum column where the inline blame
information is shown. Example: `{{"git": {"inline_blame": {"min_column":
80}}}` ([#10555](https://github.com/zed-industries/zed/issues/10555)).

Demo Video:


https://github.com/zed-industries/zed/assets/1185253/61343dbe-9002-4bd1-b0d4-403f8da79050

---------

Co-authored-by: Thorsten Ball <mrnugget@gmail.com>

### What?

A setting has been added to control the visibility of the Project Panel
button in the status bar.

### Why?

I don't tend to use the Project Panel, but use a keyboard shortcut to
access if needed. Thus, the button in the status bar provides me little
more than visual clutter. Additionally, there is precedent for this
configurability with other panels (collaboration, chat, notification,
terminal, etc).

Release Notes:

- Added a setting to show/hide the Project Panel button in the status
bar. `{"project_panel": {"button": false}}`

While I don't expect these to be useful for our weekly minor releases, I
hope that this will save a step for people doing mid-week patches.

Release Notes:

- N/A

By default NSWindow's release themselves when closed, which doesn't
interact well with rust's lifetime system.

Disable that behaviour, and explicitly release the NSWindow when the
window handle is dropped.

Release Notes:

- Fixed a (rare) panic when closing a window.

Fixes #10597

Release Notes:

- Fixed "project panel: collapse all entries" expanding collapsed
worktrees.

This relaxes path parsing to allow paths like ./foo.rs:food or
./food/foo_bar.rs:2:12:food as some tools may add a suffix without
regard for col/row end.

Fixes #10688 

Release Notes:

- Made path parsing in terminal (for directory links) more lenient with
regards to row/column fields.

This PR bumps the Prisma extension to v0.02.

Changes:

- The Prisma extension now provides its own `tab_size` setting
([#10296](https://github.com/zed-industries/zed/pull/10296))

Release Notes:

- N/A

This fixes useless error messages popping up in case a file hasn't been
committed yet or the repo doesn't have commits yet.

Release Notes:

- Fixed git blame functionality not handling errors correctly when there
are no commits yet or when file isn't committed yet.

Release Notes:

- N/A

This avoids the tooltip showing up when the context menu is visible.

It fixes this:

![screenshot-2024-04-17-13 17
41@2x](https://github.com/zed-industries/zed/assets/1185253/373bb70e-9c7f-4b9f-a928-8206697c6039)


Release Notes:

- N/A

Only noticed this when editing zed.dev.

Release Notes:

- N/A

With file icons turned off, we still reserve space for an icon and make
it invisible. However, that space was marked as flex, which made it
shrink in case subsequent file name could not fit in the current width
of the project panel. Fixes #10622



https://github.com/zed-industries/zed/assets/24362066/d565a03a-3712-49d1-bf52-407e4508a8cf


Release Notes:


- Fixed project panel entries misalignment with narrow panel & file
icons turned off.

Release Notes:

- N/A

This PR brings the docs in line with the version we have on
https://zed.dev

Release Notes:

- N/A

Filled out a comment where there was a TODO to explain SharedString
usage.

Release Notes:

- N/A

cc @iamnbutler I think we should differentiate between inline blame and
the gutter blame.

Release Notes:

- N/A

Fixes
https://github.com/zed-industries/zed/pull/9754#pullrequestreview-2005401133
Fixes
https://github.com/zed-industries/zed/pull/9754#issuecomment-2060536590
Closes https://github.com/zed-industries/zed/pull/10669

* Updates the docs to use a proper max value for the centered layout
padding (0.4 instead of 0.45)
* Makes the `center` wrapper (`h_flex`) to be of size of the `center`
element always, to ensure terminal lines are displayed correctly

The letter fix is somewhat hacky: while it does the right thing right
now, it does not prevent us from future mistakes like these, and does
not explain why the bottom dock could be of one, smaller, height, and
its contents, the terminal pane/terminal element/something else would
think that it has a larger height, thus breaking the scrolling and
rendering.
cc @alygin if you're interested to solve another layout-related thing.

Release Notes:

- N/A

This fixes the https://github.com/zed-industries/zed/issues/10583 by
regenerating the blame information after the
buffer is edited. It uses a debounce of 2seconds. Meaning that undone
deletions show up again after 2secs.

Release Notes:

- Fixed `git blame` data not handling the undoing of deletions
correctly.
([#10583](https://github.com/zed-industries/zed/issues/10583)).

Release Notes:

- Fixed ([#4716](https://github.com/zed-industries/zed/issues/4716)).

---------

Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>

Add `./script/trigger-release {nightly|stable|preview}`

This command can be run regardless of the state of your local git
repository, and it
either triggers a workflow run of `bump_patch_version.yml` (for
stable/preview) or
it force pushes the nightly tag.

Also add some docs on releases to explain all of this.

Release Notes:

- N/A

Release Notes:

- N/A

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

This PR adds an editor controls menu to the tool bar. This menu will be
used to contain controls that toggle visual features in the editor, like
toggling inlay hints, showing git status or blame, hiding the gutter,
hiding or showing elements in the tool bar, etc.

For the moment, this consolidates the new Inline Git Blame toggle and
the old Inlay Hints toggle. In the future it will contain additional
controls.

Before: 

![CleanShot - 2024-04-16 at 16 38
53@2x](https://github.com/zed-industries/zed/assets/1714999/249e353f-786a-4391-8d49-66dd61feff8a)

After:

![CleanShot - 2024-04-16 at 16 38
43@2x](https://github.com/zed-industries/zed/assets/1714999/5b3cf4d5-855a-4475-ac05-8474b6c94b7b)

---

Release Notes:

- Added an editor controls menu to the tool bar. This will contain
visual, editor-specific options like toggling inlay hints, showing git
status or blame, etc.
- Removed the top level inlay hint toggle from the tool bar due to the
above change.
- Added the ability to toggle inline git blame from the new editor
controls menu.

---------

Co-authored-by: Marshall Bowers <1486634+maxdeviant@users.noreply.github.com>

This fixes a bug caused by mis-ordered database migration in #9754

Release Notes:

- N/A

This PR bumps the Terraform extension to v0.0.2.

Changes:

- #10641

Release Notes:

- N/A

This PR bumps the C# extension to v0.0.2.

Changes:

- #10638

Release Notes:

- N/A

This PR bumps the Clojure extension to v0.0.2.

Changes:

- #10636

Release Notes:

- N/A

This PR bumps the Gleam extension to v0.1.1.

Changes:

- #10635

Release Notes:

- N/A

Based on https://github.com/alacritty/alacritty/issues/7795

Unknown error code commands (now includes the interrupted ones):

![image](https://github.com/zed-industries/zed/assets/2690773/801868bc-081c-453c-a353-233d4397bda9)

Successful command:

![image](https://github.com/zed-industries/zed/assets/2690773/874377c7-c967-4a6f-8a89-ec7bf398a8b3)

Unsuccessful command:

![image](https://github.com/zed-industries/zed/assets/2690773/6c99dc5d-d324-41e9-a71b-5d0bf705de27)

The "design", including wordings and special characters, is not final,
suggestions are welcome.
The main idea was to somehow distinguish the appended lines without
occupying extra vertical space.

Release Notes:

- Added task summary output into corresponding terminal tabs

This PR implements the Centered Layout feature (#4685):
- Added the `toggle centered layout` action.
- The centered layout mode only takes effect when there's a single
central pane.
- The state of the centered layout toggle is saved / restored between
Zed restarts.
- The paddings are controlled by the `centered_layout` setting:

```json
"centered_layout": {
  "left_padding": 0.2,
  "right_padding": 0.2
}
```

This allows us to support both the VSCode-style (equal paddings) and
IntelliJ-style (only left padding in Zen mode).

Release Notes:

- Added support for Centered Layout
([#4685](https://github.com/zed-industries/zed/pull/9754)).


https://github.com/zed-industries/zed/assets/2101250/2d5b2a16-c248-48b5-9e8c-6f1219619398

Related Issues:

- Part of #4382

The previous v0.0.3 bump was in error, as we hadn't published a v0.0.2 yet.

This PR bumps the Lua extension to v0.0.3.

Changes:

- #10639
- #10642

Release Notes:

- N/A

This PR bumps the Zig extension to v0.1.1.

Changes:

- #10559
- #10634

Release Notes:

- N/A

The changes in #10437 accidentally switched 'x64' to 'x86_64' which
breaks installs on linux x64, macos x64 and windows x64. This yields the
following error:

```
[2024-04-16T12:58:01-04:00 ERROR project] failed to start language server "lua-language-server": no asset found matching "lua-language-server-3.7.4-darwin-x86_64.tar.gz"
[2024-04-16T12:58:01-04:00 ERROR project] server stderr: Some("")
```

It's trying to download: 
`lua-language-server-3.7.4-darwin-x86_64.tar.gz`
which should be
`lua-language-server-3.7.4-darwin-x64.tar.gz`

See [LuaLS release
page](https://github.com/LuaLS/lua-language-server/releases/tag/3.6.25).

CC: @maxbrunsfeld

lua.rs before ef4c70c:

https://github.com/zed-industries/zed/blob/c6028f665182403a035af193a3f27021f6e57c67/crates/languages/src/lua.rs#L35

lua.rs after:

https://github.com/zed-industries/zed/blob/5d7148bde108bd59ca20f297fcebbcb9b8c27452/extensions/lua/src/lua.rs#L49

Release Notes:

- N/A

This PR updates the Terraform extension to not cache the binary when it
is using the one on the $PATH.

Release Notes:

- N/A

This PR updates the Lua extension to not cache the binary when it is
using the one on the $PATH.

Release Notes:

- N/A

This PR updates the C# extension to not cache the binary when it is
using the one on the $PATH.

Release Notes:

- N/A

This PR renames the `cached_binary` field on the `ZigExtension` back to
`cached_binary_path` to make it match the other extensions.

Release Notes:

- N/A

This PR updates the Clojure extension to not cache the binary when it is
using the one on the $PATH.

Release Notes:

- N/A

This PR updates the Gleam extension to not cache the binary when it is
using the one on the $PATH.

Release Notes:

- N/A

This was a bug introduced when moving to extensions: when we find a
binary in the user's project environment, we shouldn't cache that
globally since it might not work for other projects.

See also: https://github.com/zed-industries/zed/pull/10559

Release Notes:


- N/A