Fix a bunch of other low-hanging style lints (#36498)

- **Fix a bunch of low hanging style lints like unnecessary-return**
- **Fix single worktree violation**
- **And the rest**

Release Notes:

- N/A

crates/extension/src/extension_builder.rs

@@ -401,7 +401,7 @@ impl ExtensionBuilder {
         let mut clang_path = wasi_sdk_dir.clone();
         clang_path.extend(["bin", &format!("clang{}", env::consts::EXE_SUFFIX)]);
 
-        if fs::metadata(&clang_path).map_or(false, |metadata| metadata.is_file()) {
+        if fs::metadata(&clang_path).is_ok_and(|metadata| metadata.is_file()) {
             return Ok(clang_path);
         }
 

crates/extension/src/extension_events.rs

@@ -19,9 +19,8 @@ pub struct ExtensionEvents;
 impl ExtensionEvents {
     /// Returns the global [`ExtensionEvents`].
     pub fn try_global(cx: &App) -> Option<Entity<Self>> {
-        return cx
-            .try_global::<GlobalExtensionEvents>()
-            .map(|g| g.0.clone());
+        cx.try_global::<GlobalExtensionEvents>()
+            .map(|g| g.0.clone())
     }
 
     fn new(_cx: &mut Context<Self>) -> Self {