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/terminal_view/src/terminal_element.rs

@@ -1478,7 +1478,7 @@ pub fn is_blank(cell: &IndexedCell) -> bool {
         return false;
     }
 
-    return true;
+    true
 }
 
 fn to_highlighted_range_lines(