Another batch of lint fixes (#36521)

- **Enable a bunch of extra lints**
- **First batch of fixes**
- **More fixes**

Release Notes:

- N/A

crates/git_ui/src/git_panel.rs

@@ -426,7 +426,7 @@ impl GitPanel {
         let git_store = project.read(cx).git_store().clone();
         let active_repository = project.read(cx).active_repository(cx);
 
-        let git_panel = cx.new(|cx| {
+        cx.new(|cx| {
             let focus_handle = cx.focus_handle();
             cx.on_focus(&focus_handle, window, Self::focus_in).detach();
             cx.on_focus_out(&focus_handle, window, |this, _, window, cx| {
@@ -563,9 +563,7 @@ impl GitPanel {
 
             this.schedule_update(false, window, cx);
             this
-        });
-
-        git_panel
+        })
     }
 
     fn hide_scrollbars(&mut self, window: &mut Window, cx: &mut Context<Self>) {
@@ -1198,14 +1196,13 @@ impl GitPanel {
             window,
             cx,
         );
-        cx.spawn(async move |this, cx| match prompt.await {
-            Ok(RestoreCancel::RestoreTrackedFiles) => {
+        cx.spawn(async move |this, cx| {
+            if let Ok(RestoreCancel::RestoreTrackedFiles) = prompt.await {
                 this.update(cx, |this, cx| {
                     this.perform_checkout(entries, cx);
                 })
                 .ok();
             }
-            _ => {}
         })
         .detach();
     }