This PR fixes a bug where the selected state for the panel icons in the
status bar was not correctly reflecting whether the panel was open.

It was erroneously using the `is_open` state for the context menu.

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This PR adds new `Button` and `IconButton` components built on top of
our new button abstractions.

Both of these buttons are built from the common `ButtonLike` base, and
implement the `ButtonCommon` (name TBD) trait in order to provide a
common interface.

There are still some visual tweaks that we'll need to make to the new
buttons, but those should be straightforward to make after we land this.

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Enable the completion tests in editor2.

This PR makes the `toggle` method on the various list components accept
an `impl Into<Option<bool>>` instead of just an `Option<bool>`.

This allows a caller with just a `bool` avoid having to wrap the
`Option` themselves.

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This PR moves the `GraphicSlot` definition out of the `components`
module, as it doesn't contain a component.

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[[PR Description]]

This PR styles the hover popover, and sets it on the [second elevation
level](https://zed-docs.vercel.app/doc/ui2/trait.StyledExt.html#method.elevation_2).

![CleanShot 2023-11-29 at 14 55
55@2x](https://github.com/zed-industries/zed/assets/1714999/01589b2a-d6e2-4baa-ba5d-050f06cf2c58)


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This PR reworks the `Disclosure` component.

The primary goal here was to remove the illegal state where a
`Disclosure` is rendered with a `Toggle::NotToggleable` state, as the
`Disclosure` shouldn't exist at all in this case.

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Co-Authored-By: Max <max@zed.dev>

Co-Authored-By: Max <max@zed.dev>

This PR reorganizes the list components so that each of the sub
components lives in its own file.

### Motivation

I've seen a number of folks have trouble finding the `ListItem`
definition while pairing, so having it in its own file seems more
self-explanatory.

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This PR adds a context menu to the project panel in Zed2.

* [x] Allow the context menu to extend outside of the project panel's
bounds
* [x] Add keyboard shortcuts to the context menu
* [x] Dismiss the context menu
    * [x] when running an action
    * [x] when changing selection in the project panel

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NA

This PR adds a new `Disableable` trait to use for elements that are
capable of being disabled.

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

This PR removes some unneeded wrapping `div`s around the left content in
`ListItem`s.

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

## TODO

- [x] Remove `InteractionState`
- [ ] `Selectable` should use `Selection` instead of a boolean
- [x] Clean out ui2 prelude
- [ ] Build out button2 button types
- [ ] Port old buttons

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---------

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

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Refactors prettier support:

* moves away prettier-related code into a separate module, makes
prettier installation & start phases more type-restricted
* ensures prettier installation and start attempts are capped with a
fixed attempts amount: after it's exceeded, no further attempts to
install and/or start prettier area made
* improves default prettier management, by correctly preserving its
plugin set between (re) installations and always installing the prettier
server part
* slightly improves prettier logging 

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- N/A