message: Fix default text size in `TitleBar`
diff: @@ -97,7 +97,7 @@ where
  layout.bounds(),
  &self.style,
  &self.title,
  - self.title_size.unwrap_or(Renderer::DEFAULT_SIZE),
  + self.title_size.unwrap_or(renderer.default_size()),
  Renderer::Font::default(),
  title_bounds,
  controls,
  @@ -109,7 +109,7 @@ where
  layout.bounds(),
  &self.style,
  &self.title,
  - self.title_size.unwrap_or(Renderer::DEFAULT_SIZE),
  + self.title_size.unwrap_or(renderer.default_size()),
  Renderer::Font::default(),
  padded.bounds(),
  None,
  @@ -150,7 +150,7 @@ where
  let limits = limits.pad(padding);
  let max_size = limits.max();
  - let title_size = self.title_size.unwrap_or(Renderer::DEFAULT_SIZE);
  + let title_size = self.title_size.unwrap_or(renderer.default_size());
  let title_font = Renderer::Font::default();
  let (title_width, title_height) = renderer.measure(
  