Fix clippy::redundant_clone lint violations (#36558)

This removes around 900 unnecessary clones, ranging from cloning a few
ints all the way to large data structures and images.

A lot of these were fixed using `cargo clippy --fix --workspace
--all-targets`, however it often breaks other lints and needs to be run
again. This was then followed up with some manual fixing.

I understand this is a large diff, but all the changes are pretty
trivial. Rust is doing some heavy lifting here for us. Once I get it up
to speed with main, I'd appreciate this getting merged rather sooner
than later.

Release Notes:

- N/A

crates/livekit_client/src/livekit_client/playback.rs

@@ -117,7 +117,6 @@ impl AudioStack {
 
         let (frame_tx, mut frame_rx) = futures::channel::mpsc::unbounded();
         let transmit_task = self.executor.spawn({
-            let source = source.clone();
             async move {
                 while let Some(frame) = frame_rx.next().await {
                     source.capture_frame(&frame).await.log_err();
@@ -132,12 +131,12 @@ impl AudioStack {
             drop(transmit_task);
             drop(capture_task);
         });
-        return Ok((
+        Ok((
             super::LocalAudioTrack(track),
             AudioStream::Output {
                 _drop: Box::new(on_drop),
             },
-        ));
+        ))
     }
 
     fn start_output(&self) -> Arc<Task<()>> {