single click channel (#7596)

- Open channel notes and chat on channel click
- WIP
- Fix compile error
- Don't join live kit until requested
- Track in_call state separately from in_room



Release Notes:

- Improved channels: you can now be in a channel without joining the
audio call automatically

**or**

- N/A

---------

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

crates/editor/src/display_map.rs

@@ -3,7 +3,7 @@
 //! Not literally though - rendering, layout and all that jazz is a responsibility of [`EditorElement`][EditorElement].
 //! Instead, [`DisplayMap`] decides where Inlays/Inlay hints are displayed, when
 //! to apply a soft wrap, where to add fold indicators, whether there are any tabs in the buffer that
-//! we display as spaces and where to display custom blocks (like diagnostics).
+//! we display as spaces and where to display custom blocks (like diagnostics)
 //! Seems like a lot? That's because it is. [`DisplayMap`] is conceptually made up
 //! of several smaller structures that form a hierarchy (starting at the bottom):
 //! - [`InlayMap`] that decides where the [`Inlay`]s should be displayed.