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/languages/src/json.rs

@@ -280,7 +280,7 @@ impl JsonLspAdapter {
             )
         })?;
         writer.replace(config.clone());
-        return Ok(config);
+        Ok(config)
     }
 }