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>

assets/settings/default.json

@@ -104,10 +104,8 @@
   "show_whitespaces": "selection",
   // Settings related to calls in Zed
   "calls": {
-    // Join calls with the microphone live by default
-    "mute_on_join": false,
-    // Share your project when you are the first to join a channel
-    "share_on_join": true
+    // Join calls with the microphone muted by default
+    "mute_on_join": false
   },
   // Toolbar related settings
   "toolbar": {