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/gpui/src/platform/linux/platform.rs

@@ -108,13 +108,13 @@ impl LinuxCommon {
 
         let callbacks = PlatformHandlers::default();
 
-        let dispatcher = Arc::new(LinuxDispatcher::new(main_sender.clone()));
+        let dispatcher = Arc::new(LinuxDispatcher::new(main_sender));
 
         let background_executor = BackgroundExecutor::new(dispatcher.clone());
 
         let common = LinuxCommon {
             background_executor,
-            foreground_executor: ForegroundExecutor::new(dispatcher.clone()),
+            foreground_executor: ForegroundExecutor::new(dispatcher),
             text_system,
             appearance: WindowAppearance::Light,
             auto_hide_scrollbars: false,

crates/gpui/src/platform/linux/wayland/client.rs

@@ -1280,7 +1280,6 @@ impl Dispatch<wl_keyboard::WlKeyboard, ()> for WaylandClientStatePtr {
                 let Some(focused_window) = focused_window else {
                     return;
                 };
-                let focused_window = focused_window.clone();
 
                 let keymap_state = state.keymap_state.as_ref().unwrap();
                 let keycode = Keycode::from(key + MIN_KEYCODE);

crates/gpui/src/platform/linux/wayland/cursor.rs

@@ -67,7 +67,7 @@ impl Cursor {
         {
             self.loaded_theme = Some(LoadedTheme {
                 theme,
-                name: theme_name.map(|name| name.to_string()),
+                name: theme_name,
                 scaled_size: self.scaled_size,
             });
         }

crates/gpui/src/platform/linux/x11/client.rs

@@ -1329,7 +1329,7 @@ impl X11Client {
         state.composing = false;
         drop(state);
         if let Some(mut keystroke) = keystroke {
-            keystroke.key_char = Some(text.clone());
+            keystroke.key_char = Some(text);
             window.handle_input(PlatformInput::KeyDown(crate::KeyDownEvent {
                 keystroke,
                 is_held: false,