message: Fix drawing empty `Quad` on empty `ProgressBar`
diff: @@ -29,6 +29,8 @@ impl progress_bar::Renderer for Renderer {
  }],
  };
  + (
  + if active_progress_width > 0.0 {
  let bar = Primitive::Quad {
  bounds: Rectangle {
  width: active_progress_width,
  @@ -40,9 +42,11 @@ impl progress_bar::Renderer for Renderer {
  border_color: Color::TRANSPARENT,
  };
  - (
  Primitive::Group {
  primitives: vec![background, bar],
  + }
  + } else {
  + background
  },
  MouseCursor::OutOfBounds,
  )
  