message: Remove superfluous generic type in `iced_lazy::Cache`
diff: @@ -24,11 +24,11 @@ where
  state: RefCell::new(Some(
  StateBuilder {
  component: Box::new(component),
  + message: PhantomData,
  cache_builder: |state| {
  Some(
  CacheBuilder {
  element: state.view(),
  - message: PhantomData,
  overlay_builder: |_| None,
  }
  .build(),
  @@ -55,20 +55,20 @@ struct Instance<'a, Message, Renderer, Event> {
  #[self_referencing]
  struct State<'a, Message: 'a, Renderer: 'a, Event: 'a> {
  component: Box<dyn Component<Message, Renderer, Event = Event> + 'a>,
  + message: PhantomData<Message>,
  #[borrows(mut component)]
  #[covariant]
  - cache: Option<Cache<'this, Message, Renderer, Event>>,
  + cache: Option<Cache<'this, Event, Renderer>>,
  }
  #[self_referencing]
  -struct Cache<'a, Message, Renderer: 'a, Event: 'a> {
  - element: Element<'a, Event, Renderer>,
  - message: PhantomData<Message>,
  +struct Cache<'a, Message: 'a, Renderer: 'a> {
  + element: Element<'a, Message, Renderer>,
  #[borrows(mut element)]
  #[covariant]
  - overlay: Option<overlay::Element<'this, Event, Renderer>>,
  + overlay: Option<overlay::Element<'this, Message, Renderer>>,
  }
  impl<'a, Message, Renderer, Event> Instance<'a, Message, Renderer, Event> {
  @@ -94,7 +94,6 @@ impl<'a, Message, Renderer, Event> Instance<'a, Message, Renderer, Event> {
  *cache = Some(
  CacheBuilder {
  element,
  - message: PhantomData,
  overlay_builder: |_| None,
  }
  .build(),
  @@ -170,11 +169,11 @@ where
  *self.state.borrow_mut() = Some(
  StateBuilder {
  component,
  + message: PhantomData,
  cache_builder: |state| {
  Some(
  CacheBuilder {
  element: state.view(),
  - message: PhantomData,
  overlay_builder: |_| None,
  }
  .build(),
  @@ -242,7 +241,6 @@ where
  *cache = Some(
  CacheBuilder {
  element,
  - message: PhantomData,
  overlay_builder: |element| {
  element.overlay(layout, renderer)
  },
  @@ -406,11 +404,11 @@ where
  self.instance.state = RefCell::new(Some(
  StateBuilder {
  component,
  + message: PhantomData,
  cache_builder: |state| {
  Some(
  CacheBuilder {
  element: state.view(),
  - message: PhantomData,
  overlay_builder: |element| {
  element.overlay(layout, renderer)
  },
  