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/picker/src/head.rs

@@ -32,7 +32,7 @@ impl Head {
         blur_handler: impl FnMut(&mut V, &mut ViewContext<'_, V>) + 'static,
         cx: &mut ViewContext<V>,
     ) -> Self {
-        let head = cx.new_view(|cx| EmptyHead::new(cx));
+        let head = cx.new_view(EmptyHead::new);
         cx.on_blur(&head.focus_handle(cx), blur_handler).detach();
         Self::Empty(head)
     }