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/rpc/src/proto.rs

@@ -198,6 +198,7 @@ messages!(
     (InlayHints, Background),
     (InlayHintsResponse, Background),
     (InviteChannelMember, Foreground),
+    (JoinChannel2, Foreground),
     (JoinChannel, Foreground),
     (JoinChannelBuffer, Foreground),
     (JoinChannelBufferResponse, Foreground),
@@ -208,6 +209,9 @@ messages!(
     (JoinRoom, Foreground),
     (JoinRoomResponse, Foreground),
     (LeaveChannelBuffer, Background),
+    (JoinChannelCall, Foreground),
+    (JoinChannelCallResponse, Foreground),
+    (LeaveChannelCall, Foreground),
     (LeaveChannelChat, Foreground),
     (LeaveProject, Foreground),
     (LeaveRoom, Foreground),
@@ -324,6 +328,9 @@ request_messages!(
     (InlayHints, InlayHintsResponse),
     (InviteChannelMember, Ack),
     (JoinChannel, JoinRoomResponse),
+    (JoinChannel2, JoinRoomResponse),
+    (JoinChannelCall, JoinChannelCallResponse),
+    (LeaveChannelCall, Ack),
     (JoinChannelBuffer, JoinChannelBufferResponse),
     (JoinChannelChat, JoinChannelChatResponse),
     (JoinProject, JoinProjectResponse),