That took a while.

I also removed an instance of SmallVec leaking into the public GPUI
APIs.

Release Notes:

- N/A

Remove SmallVec from the public API of GPUI

Release Notes:

- Channels: Improved font sizes in chat
- Channels: Added a link preview when hovering over links in chat
- Channels: Fixed rendering of newlines in chat messages
- Added a new setting "use_autoclose" (defaulting to true) that lets you
disable autoclose per language.
([#1420](https://github.com/zed-industries/community/issues/1420))
([#1903](https://github.com/zed-industries/community/issues/1903))

In the process I also:
- Made the AsyncWindowContext slightly more ergonomic.
- Refactored the input handler traits to enable easy, non-view input
handlers
- Locked down the visibility on all mac-specific GPUI code
- Documented all remaining, public types

Release Notes:

- N/A

Add documentation to all platform types

Also disable autoclose for Chat

This matches Neovim behaviour by setting the mode to `Normal` when using
search while in visual mode.

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

Automatically record the context on non-view input handlers
Simplify the async window context update() method

Release Notes:

- Added autocomplete for @-mentions in the chat panel.

This PR prevents the breadcrumbs from overflowing the toolbar when its
contents are long:

<img width="1270" alt="Screenshot 2024-01-19 at 6 15 58 PM"
src="https://github.com/zed-industries/zed/assets/1486634/ecee7a42-51ef-43d4-99a1-9c3da784dede">

Release Notes:

- Fixed an issue where long breadcrumbs would overflow the toolbar.

Release Notes:

- Fixes a bug where open popovers would stay over top of zoomed panels,
if already open when the panel is zoomed.
- Fixes a bug where the terminal would create a selection when clicking
the status bar or title bar.

This PR fixes an issue where having a lot of participants in a call
could cause the avatars/facepiles to overflow the title bar, pushing the
call controls off-screen.

The participant list will now scroll when it would otherwise exceed the
available space:


https://github.com/zed-industries/zed/assets/1486634/806c77e6-bd4c-4864-8567-92e0960734ee

Release Notes:

- Fixed participant list overflowing the title bar.

CGDisplayBounds returns data in "global display coordinates" (which are
the same as Zed's coordinates), different from the NS APIs which use
"screen coordinates" (which have the Y axis inverted)

Also remove some transmutes while we're at it

Release Notes:

- Fixed position of notifications on secondary displays

Fixes */# in visual mode, and avoids setting up irritating state.

[[PR Description]]

Release Notes:

- vim: Improved `*` and `#` to not toggle Zed's search state. Instead we
now use the regex to identify start and end of words (more like vim).

2 seconds feels a little jittery, lets try a bit longer

Release Notes:

- (Added|Fixed|Improved) ...
([#<public_issue_number_if_exists>](https://github.com/zed-industries/community/issues/<public_issue_number_if_exists>)).

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

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

CGDisplayBounds returns data in "global display coordinates" (which are
the same as Zed's coordinates), different from the NS APIs which use
"screen coordinates" (which have the Y axis inverted)

Also remove some transmutes while we're at it

This PR adds more terminal colors that were present in the Zed1 themes
to the Zed2 theme.

Namely, we now have the `dim_` variants for the various ANSI colors and
various `foreground` colors.

Release Notes:

- Improved terminal colors.

This PF fixes an issue where the documentation labels in the completion
menu could end up completing obscuring the primary content.

#### Before
<img width="691" alt="Screenshot 2024-01-19 at 1 42 19 PM"
src="https://github.com/zed-industries/zed/assets/1486634/187f2978-08be-4f5e-ba93-91ed09cd6e87">

#### After

<img width="704" alt="Screenshot 2024-01-19 at 1 39 45 PM"
src="https://github.com/zed-industries/zed/assets/1486634/e5929c04-bace-4336-b878-4ada5660d235">

Since this involved changes to the `ListItem`, I also made sure to test
the other problematic case that was fixed in #3845 to make sure we
didn't regress there:

<img width="665" alt="Screenshot 2024-01-19 at 1 39 11 PM"
src="https://github.com/zed-industries/zed/assets/1486634/14b72d44-b6a6-4aef-a708-37fb60b8875a">

I also tried to capture these cases in the `ListItem` stories to make it
easier to test all of them at once:

<img width="1141" alt="Screenshot 2024-01-19 at 1 40 03 PM"
src="https://github.com/zed-industries/zed/assets/1486634/333886ff-e394-4cba-89db-98352481c7f6">

Release Notes:

- Fixed an issue where documentation labels could obscure other content
in the editor completion menu
([#2419](https://github.com/zed-industries/community/issues/2419)).

Fix a panic caused by toggleFullScreen on one window untoggling
full-screen on
another.

I managed to reproduce this only once, which makes me sad, but this
change
should fix it regardless.

https://zed-industries.slack.com/archives/C04S6T1T7TQ/p1705631681238979

Release Notes:

- Fixed an occasional panic when opening a new fullscreen window.

The current thing of returning before it's done makes me so nervous

Fixes */# in visual mode, and avoids setting up irritating state.

Release Notes:

- N/A

This PR styles the notifications for the notification panel.

These are the notification toasts you receive when you have a new
notification (e.g., a mention in chat):

<img width="423" alt="Screenshot 2024-01-19 at 11 39 16 AM"
src="https://github.com/zed-industries/zed/assets/1486634/a1fc7a67-5aad-4cb2-8dc9-35d302984fcb">

Release Notes:

- Improved the look of toasts for incoming notifications.

This PR updates the tenses used by the summary line of doc comments to
match the [Rust API documentation
conventions](https://rust-lang.github.io/rfcs/1574-more-api-documentation-conventions.html#summary-sentence).

Specifically:

> The summary line should be written in third person singular present
indicative form. Basically, this means write ‘Returns’ instead of
‘Return’.

I'm sure there are plenty occurrences that I missed.

Release Notes:

- N/A