message: Implement `Widget::operate` for `lazy::Cached`
diff: @@ -4,8 +4,9 @@ use iced_native::mouse;
  use iced_native::overlay;
  use iced_native::renderer;
  use iced_native::widget::tree::{self, Tree};
  +use iced_native::widget::{self, Widget};
  +use iced_native::Element;
  use iced_native::{Clipboard, Hasher, Length, Point, Rectangle, Shell, Size};
  -use iced_native::{Element, Widget};
  use ouroboros::self_referencing;
  use std::cell::{Ref, RefCell, RefMut};
  @@ -125,6 +126,21 @@ where
  })
  }
  + fn operate(
  + &self,
  + tree: &mut Tree,
  + layout: Layout<'_>,
  + operation: &mut dyn widget::Operation<Message>,
  + ) {
  + self.with_element(|element| {
  + element.as_widget().operate(
  + &mut tree.children[0],
  + layout,
  + operation,
  + );
  + });
  + }
  +
  fn on_event(
  &mut self,
  tree: &mut Tree,
  