message: Avoid scrollbars on blockquote when not necessary
  Fixes
diff: position: relative; /* OctoLinker compat: attach the purple balls to the scroll */
  max-height: 30.5em;
  overflow-y: auto;
  +
  + /* Avoids unnecessary scrollbars in some cases #3012 */
  + padding-top: 0.1em;
  + padding-bottom: 0.1em;
  }
  /* A tiny scroll bar appears when the last paragraph of a quote contains an Emoji */
  