message: Expose `Content` and `TitleBar` in `iced_glow`
diff: use crate::Renderer;
  pub use iced_native::pane_grid::{
  - Axis, Configuration, Content, Direction, DragEvent, Focus, KeyPressEvent,
  - Node, Pane, ResizeEvent, Split, State,
  + Axis, Configuration, Direction, DragEvent, Focus, KeyPressEvent, Node,
  + Pane, ResizeEvent, Split, State,
  };
  /// A collection of panes distributed using either vertical or horizontal splits
  @@ -22,3 +22,15 @@ pub use iced_native::pane_grid::{
  ///
  /// This is an alias of an `iced_native` pane grid with an `iced_wgpu::Renderer`.
  pub type PaneGrid<'a, Message> = iced_native::PaneGrid<'a, Message, Renderer>;
  +
  +/// The content of a [`Pane`].
  +///
  +/// [`Pane`]: struct.Pane.html
  +pub type Content<'a, Message> =
  + iced_native::pane_grid::Content<'a, Message, Renderer>;
  +
  +/// The title bar of a [`Pane`].
  +///
  +/// [`Pane`]: struct.Pane.html
  +pub type TitleBar<'a, Message> =
  + iced_native::pane_grid::TitleBar<'a, Message, Renderer>;
  