message: Fix GitHub bug: PR lists wrap multiple times sometimes
diff: .js-file-header-dropdown .dropdown-menu > .dropdown-divider:last-child {
  display: none !important;
  }
  +
  +/* Avoid multi-column wrapping in PR lists on small displays #4405 */
  +.js-issue-row .js-navigation-open ~ .text-small:last-child {
  + flex-wrap: wrap;
  +}
  