message: Increase initial size of text cache in `iced_wgpu`
  This reduces the amount of cache updates in general when text changes.
  The new cache should take 4MB of VRAM. I think this is reasonable for a
  modern GUI toolkit. In any case, we should be able to reduce this value in the
  future.
diff: @@ -74,6 +74,7 @@ impl Renderer {
  let glyph_brush =
  GlyphBrushBuilder::using_fonts_bytes(vec![default_font, mono_font])
  + .initial_cache_size((2048, 2048))
  .build(&mut device, TextureFormat::Bgra8UnormSrgb);
  let quad_pipeline = quad::Pipeline::new(&mut device);
  