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/acp_thread/src/diff.rs

@@ -222,7 +222,7 @@ impl PendingDiff {
     fn finalize(&self, cx: &mut Context<Diff>) -> FinalizedDiff {
         let ranges = self.excerpt_ranges(cx);
         let base_text = self.base_text.clone();
-        let language_registry = self.buffer.read(cx).language_registry().clone();
+        let language_registry = self.buffer.read(cx).language_registry();
 
         let path = self
             .buffer
@@ -248,7 +248,6 @@ impl PendingDiff {
 
         let buffer_diff = cx.spawn({
             let buffer = buffer.clone();
-            let language_registry = language_registry.clone();
             async move |_this, cx| {
                 build_buffer_diff(base_text, &buffer, language_registry, cx).await
             }