message: Progress.css: fixed design
diff: .Progress {
  border-radius: 2px;
  background: var(--placeholder_icon_background);
  + height: 4px;
  }
  .Progress__in {
  - height: 4px;
  - border-radius: 2px;
  + height: 100%;
  + border-radius: inherit;
  transition: width .2s ease;
  background: var(--accent);
  }
  +
  +.Progress--sizeY-compact {
  + height: 2px;
  + border-radius: 1px;
  +}
  