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/ui/context_pill.rs

@@ -499,7 +499,7 @@ impl AddedContext {
                 let thread = handle.thread.clone();
                 Some(Rc::new(move |_, cx| {
                     let text = thread.read(cx).latest_detailed_summary_or_text();
-                    ContextPillHover::new_text(text.clone(), cx).into()
+                    ContextPillHover::new_text(text, cx).into()
                 }))
             },
             handle: AgentContextHandle::Thread(handle),
@@ -574,7 +574,7 @@ impl AddedContext {
             .unwrap_or_else(|| "Unnamed Rule".into());
         Some(AddedContext {
             kind: ContextKind::Rules,
-            name: title.clone(),
+            name: title,
             parent: None,
             tooltip: None,
             icon_path: None,