Users of keyboard layout with IME complained about the peculiar
behaviour where typing in "sss" and then removing all of it left behind
one 's' and also appended a closing brace. This was not reproducible on
a buffer without language, so I've suspected that brace insertion might
be a problem here. For whatever reason when the user removes the last
character from a run that triggered IME, we receive a notification about
an empty insertion. Sadly, brace completion does not handle an empty
input properly and we erroneously insert a closing brace when deleting
the followup characters. In fact, the brace inserted is always the
closing brace for the first entry in language's config.toml 'brackets'
field (see Scheme vs Markdown). This guard also allows for the proper
removal of the first character.

Closes community tickets zed-industries/community#877
zed-industries/community#1329

Z-2869

Release Notes:
- Fixed handling of bracket completion for international keyboard
layouts that use IME. This led to Zed erroneously inserting the `}`
character while removing the first character that triggered IME.

Co-Authored-By: Kyle Caverly <kyle@zed.dev>

Release Notes:

- N/A

Co-authored-by: Mikayla <mikayla@zed.dev>

Co-authored-by: Mikayla <mikayla@zed.dev>

Co-Authored-By: Nathan Sobo <1789+nathansobo@users.noreply.github.com>

This pull request extracts a separate `Codegen` struct that models the
interaction with OpenAI and takes care of diffing, auto-indenting and
reporting regions to highlight.

As part of this refactoring, we're now relying less on the AI model to
indent code. The new logic lets tree-sitter decide how the first line
should be indented. Then, for every subsequent line reported by ChatGPT,
it calculates an indent delta relative to the first reported line and
applies it to the indent level chosen by tree-sitter.

Release Notes:

- Improved auto-indentation when using the inline assistant.

Co-authored-by: Mikayla <mikayla@zed.dev>

Co-authored-by: Mikayla <mikayla@zed.dev>

Release Notes:

- vim: Fix counts with operators (`2yy`, `d3d`, etc.)
([#1496](https://github.com/zed-industries/community/issues/1496))
([#970](https://github.com/zed-industries/community/issues/970)).
- vim: Add support for counts with insert actions (`2i`, `2o`, `2a`,
etc.)
- vim: add `_` and `g_`

This PR addresses feedback from @maxbrunsfeld on new replace in buffer.
It fixes:
- missing padding surrounding replace input.
- missing padding around replace buttons.
- missing `.notify` call which made the replace fields not show up
immediately sometimes.

Release Notes:
- N/A

---------

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

Release Notes:
- Fixed a case where language server download statuses could be skipped.
- Fixed a case where language server diagnostic progress could get stuck
when restarting a language server.

Co-Authored-By: Antonio Scandurra <antonio@zed.dev>

This is still WIP, mostly pending styling. I added a pretty rudimentary
text field and no buttons whatsoever other than that. I am targeting a
Preview of 09.13, as I am gonna be on PTO for the next week.

I dislike the current implementation slightly because of `regex`'s crate
syntax and lack of support of backreferences. What strikes me as odd wrt
to syntax is that it will just replace a capture name with empty string
if that capture is missing from the regex. While this is perfectly fine
behaviour for conditionally-matched capture groups (e.g. `(foo)?`), I
think it should still error out if there's no group with a given name
(conditional or not).
Release Notes:

- Added "Replace" functionality to buffer search.

(and refactor tests to be more linear)

This re-uses the existing repeat infrastructure.

Open both the channel notes and the channel chat when clicking a channel

Fixes 2yy, d3d, etc.

For zed-industries/community#970
For zed-industries/community#1496

Add _ and g_ too while we're here.

[[PR Description]]

Started building out some early components in the storybook using a
modified version of the classic Atomic Design model @mikayla-maki and I
are exploring.

<img width="1134" alt="atomic_design"
src="https://github.com/zed-industries/zed/assets/1714999/9093a8b5-a71d-41d4-bae2-f7562494c5f3">

This PR adds a few things:

- `tab`, `tab_bar` and `icon_button` components
- Dynamic documentation for the proc macro generated methods like `w_8`,
`px_2`, etc.
- Continues to build out the Zed workspace demo

Release Notes:

- N/A