Follow-up to #4138.

Release Notes:

- N/A

fixes a bug when compiling on windows


![image](https://github.com/zed-industries/zed/assets/715417/5a35b1b2-29f4-4987-9410-730c9b287f82)

Release Notes:

- Fixed: compilation error related to `LineEnding` on Windows

https://github.com/servo/core-foundation-rs/pull/457 was released in
cocoa 0.25, so this patch dependency on github can be removed.

Release Notes:

- N/A

Although we now usually get the .ips file alongside a panic, when we
don't it's much harder to track down where panics happen because we're
not showing inlined frames.

Try iterating over all symbols in a frame to see if that improves panic
reporting.

One of the complaints of users on our first Hack call was that the error
messages you got when channel joining failed were not great.

This aims to fix that specific case, and lay the groundwork for future
improvements.

It adds two new methods to anyhow::Error

* `.error_code()` which returns a value from zed.proto (or
ErrorCode::Internal if the error has no specific tag)
* `.error_tag("key")` which returns the value of the tag (or None).

To construct errors with these fields set, you can use a builder API
based on the ErrorCode type:

* `Err(ErrorCode::Forbidden.anyhow())`
* `Err(ErrorCode::Forbidden.message("cannot join channel").into())` - to
add any context you want in the logs
* `Err(ErrorCode::WrongReleaseChannel.tag("required", "stable").into())`
- to add structured metadata to help the client handle the error better.


Release Notes:

- Improved error messaging when channel joining fails.

Make channel panel errors louder

Added hello world example to the gpui crate copied from https://gpui.rs

Release Notes:

- N/A

Release Notes:

- Fixed a panic that could occur finding a git repository.

Release Notes:

- N/A

This PR cleans up some of the Zed meta docs.

Namely:
- Removed references to the `zed-industries/community` repository
- Removed old docs directory (it'll be in Git history if we need it)

Release Notes:

- N/A

Release Notes:

- N/A

TEMP

TEMP

First pass of structured errors

Improved error handling for channel joining failures

Sometimes Cocoa calls app delegate methods (notably the display link)
while we're calling Cocoa methods. This causes a deadlock unless we
are careful to run cocao methods while we're not holding our internal
locks

Release Notes:

- Fixed a crash when opening the MacOS Save As dialogue.

Release Notes:

- Fixed a panic in calculating remote cursor positions

Sometimes Cocoa calls app delegate methods (notably the display link)
while we're calling Cocoa methods. This causes a deadlock unless we
are careful to run cocao methods while we're not holding our internal
locks

These are just some small refactorings of our language-server-starting
code, motivated by another change that I decided to bail on:
https://github.com/zed-industries/zed/pull/6448.

This PR updates `Cargo.lock` to reflect the changes made in #6435.

Release Notes:

- N/A

Typo fix.

Release Notes:

- N/A

[[PR Description]]

The `color` crate is not actually used by the `zed` crate, despite being
listed as a dependency. This PR removes it.

Previously at UI font size of 20
 - User-less channel: 28 px tall
 - Occupied channel: 30 px tall
 
Now, still at UI font size 20:
 - User-less channel: 30 px tall
 - Occupied channel: 30 px tall

Release Notes:

- Fixed an issue where a channel would grow in height while showing
participant avatars.

Release Notes:

- Added chat mentions for everyone in the call

After the general release we saw a number of crashes due to a SEGFAULT
inside the
System::new() method apparently relating to refreshing the user list.

As we do not need the user list, and the similar code in the telemtry
create is not crashing,
do less work for now.

Release Notes:

- Fixed a crash when opening the feedback modal

Release Notes:

- Fixed: When using the comment shortcut, previously HTML or JS/TS would
all prefix lines with `// `. This PR brings the comments inline with
what is expected (`// ` for JS/TS, `<!-- ... -->` for HTML). Fixes
[#4578](https://github.com/zed-industries/zed/issues/4578).

[[PR Description]]

This replaces the `tempdir` crate with `tempfile`, which resolves
[RUSTSEC-2018-0017](https://rustsec.org/advisories/RUSTSEC-2018-0017).

Release Notes:

- N/A

Release Notes:

- N/A

This was broken because the panel was created before being added to a
dock. Invert the control order and add `starts_open()` to the Panel
trait (which lets us simplify how this worked for the ProjectPanel too)

Release Notes:

- Improved Chat visibility when joining a call as a guest

Avoids spurious failures when the CI server is going slow

We set up a new CI server recently, and this caused a build to fail

Release Notes:

- N/A

This was broken because the panel was created before being added to a
dock. Invert the control order and add `starts_open()` to the Panel
trait.

Was running into an issue building live_kit_server after a fresh clone
due to missing dependencies for build.rs. The use of git submodules
wasn't currently documented.

Reverts zed-industries/zed#4236

This causes an infinite loop when opening the language server logs