message: Fix: `select-notifications` causes button overlap on mobile
diff: +/* Only when the meny is shown as a dropdown, not as a modal (mobile) #5796 */
  +/* The media query matches the native one exactly, inverted via `not` */
  +@media screen and not (max-width: 543px) {
  .js-notifications-mark-selected-actions > *,
  .rgh-open-selected-button {
  /* Allow clicking on "Done" and other toolbar buttons even when the dropdown (z-index of 99) is open #4753 */
  z-index: 100;
  }
  +}
  