Switch fully to Rust Livekit (redux) (#27126)

Swift bindings BEGONE

Release Notes:

- Switched from using the Swift LiveKit bindings, to the Rust bindings,
fixing https://github.com/zed-industries/zed/issues/9396, a crash when
leaving a collaboration session, and making Zed easier to build.

---------

Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
Co-authored-by: Michael Sloan <michael@zed.dev>

crates/collab/src/tests/following_tests.rs

@@ -436,9 +436,6 @@ async fn test_basic_following(
         editor_a1.item_id()
     );
 
-    // TODO: Re-enable this test once we can replace our swift Livekit SDK with the rust SDK
-    // todo(windows)
-    // Fix this on Windows
     #[cfg(all(not(target_os = "macos"), not(target_os = "windows")))]
     {
         use crate::rpc::RECONNECT_TIMEOUT;
@@ -463,8 +460,9 @@ async fn test_basic_following(
                     .update(cx, |room, cx| room.share_screen(cx))
             })
             .await
-            .unwrap(); // This is what breaks
+            .unwrap();
         executor.run_until_parked();
+
         let shared_screen = workspace_a.update(cx_a, |workspace, cx| {
             workspace
                 .active_item(cx)