message: Always show `Delete fork` button
  It automatically reverts to this when there's only one button:
  Before:
diff: display: none !important;
  }
  +/* Always show `Delete fork` button */
  +.js-fork-cleanup-button-group {
  + display: flex;
  + flex-direction: column;
  + align-items: center;
  +}
  +
  +.js-fork-cleanup-branch-button {
  + display: block !important;
  + border-radius: 3px;
  + border-right-width: 1px;
  +}
  +
  +.js-fork-cleanup-fork-button {
  + display: block !important;
  + padding: initial;
  + border: initial;
  + font: inherit;
  + background: initial !important;
  + box-shadow: initial !important;
  + color: var(--github-red);
  + margin-top: 7px;
  +}
  +
  +.js-fork-cleanup-select-menu {
  + display: none;
  +}
  +
  /* Visibly disable merge fields during submission for `wait-for-build` */
  [name='commit_message'][disabled],
  [name='commit_title'][disabled] {
  