chore: Fix several style lints (#17488)

It's not comprehensive enough to start linting on `style` group, but
hey, it's a start.

Release Notes:

- N/A

crates/gpui/src/taffy.rs

@@ -69,7 +69,7 @@ impl TaffyLayoutEngine {
                 .expect(EXPECT_MESSAGE)
                 .into();
             self.children_to_parents
-                .extend(children.into_iter().map(|child_id| (*child_id, parent_id)));
+                .extend(children.iter().map(|child_id| (*child_id, parent_id)));
             parent_id
         };
         self.styles.insert(layout_id, style);