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/markdown/src/markdown.rs

@@ -1323,8 +1323,7 @@ fn render_copy_code_block_button(
     .shape(ui::IconButtonShape::Square)
     .tooltip(Tooltip::text("Copy Code"))
     .on_click({
-        let id = id.clone();
-        let markdown = markdown.clone();
+        let markdown = markdown;
         move |_event, _window, cx| {
             let id = id.clone();
             markdown.update(cx, |this, cx| {