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/agent_ui/src/language_model_selector.rs

@@ -93,7 +93,7 @@ impl LanguageModelPickerDelegate {
         let entries = models.entries();
 
         Self {
-            on_model_changed: on_model_changed.clone(),
+            on_model_changed,
             all_models: Arc::new(models),
             selected_index: Self::get_active_model_index(&entries, get_active_model(cx)),
             filtered_entries: entries,
@@ -514,7 +514,7 @@ impl PickerDelegate for LanguageModelPickerDelegate {
                                 .pl_0p5()
                                 .gap_1p5()
                                 .w(px(240.))
-                                .child(Label::new(model_info.model.name().0.clone()).truncate()),
+                                .child(Label::new(model_info.model.name().0).truncate()),
                         )
                         .end_slot(div().pr_3().when(is_selected, |this| {
                             this.child(