message: Make `clean-pinned-issues` slightly more visible
diff: margin-bottom: 20px;
  /* Rounded table border https://stackoverflow.com/a/2586780/288906 */
  - box-shadow: 0 0 0 1px #d1d5da;
  + box-shadow: 0 0 0 2px #d1d5da;
  border-collapse: collapse;
  border-radius: 6px;
  border-style: hidden;
  