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/assistant_slash_commands/src/diagnostics_command.rs

@@ -44,7 +44,7 @@ impl DiagnosticsSlashCommand {
                         score: 0.,
                         positions: Vec::new(),
                         worktree_id: entry.worktree_id.to_usize(),
-                        path: entry.path.clone(),
+                        path: entry.path,
                         path_prefix: path_prefix.clone(),
                         is_dir: false, // Diagnostics can't be produced for directories
                         distance_to_relative_ancestor: 0,

crates/assistant_slash_commands/src/prompt_command.rs

@@ -80,7 +80,7 @@ impl SlashCommand for PromptSlashCommand {
         };
 
         let store = PromptStore::global(cx);
-        let title = SharedString::from(title.clone());
+        let title = SharedString::from(title);
         let prompt = cx.spawn({
             let title = title.clone();
             async move |cx| {