message: Fix issue filter dropdown conflict with sticky issue header
diff: @@ -706,9 +706,13 @@ a.tabnav-extra[href$='mastering-markdown/'] {
  .issues-listing .table-list-header {
  position: sticky;
  top: 0;
  - /* Must be above .modal-backdrop (z-index 20) #1317 and below .select-menu.active (z-index 30) */
  + /* Must be above .modal-backdrop (z-index 20) #1317 */
  z-index: 25;
  }
  +.subnav-search-context .select-menu-modal {
  + /* Bump Filters menu to be above header */
  + z-index: 26 !important;
  +}
  .issues-listing .table-list-header .select-menu-list {
  /* Since the header is sticky, filters must now fit the viewport */
  max-height: calc(100vh - 150px);
  