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/project/src/git_store/conflict_set.rs

@@ -369,7 +369,7 @@ mod tests {
         .unindent();
 
         let buffer_id = BufferId::new(1).unwrap();
-        let buffer = Buffer::new(0, buffer_id, test_content.to_string());
+        let buffer = Buffer::new(0, buffer_id, test_content);
         let snapshot = buffer.snapshot();
 
         let conflict_snapshot = ConflictSet::parse(&snapshot);
@@ -400,7 +400,7 @@ mod tests {
             >>>>>>> "#
             .unindent();
         let buffer_id = BufferId::new(1).unwrap();
-        let buffer = Buffer::new(0, buffer_id, test_content.to_string());
+        let buffer = Buffer::new(0, buffer_id, test_content);
         let snapshot = buffer.snapshot();
 
         let conflict_snapshot = ConflictSet::parse(&snapshot);