message: Fix bug where catalog modal causes double scrollbar
diff: // Use this file to override styles from 3rd party dependencies
  +$pf-4-nav-bar-height: 76px; // Height of the PatternFly 4 masthead
  .text-secondary {
  color: $color-text-secondary;
  @@ -215,7 +216,10 @@ tags-input .autocomplete .suggestion-item em {
  }
  .modal.right-side-modal-pf .modal-dialog {
  - margin-top: 76px; // since PatternFly 4's masthead is taller than PatternFly 3's
  + margin-top: $pf-4-nav-bar-height; // since PatternFly 4's masthead is taller than PatternFly 3's
  + .modal-content {
  + height: calc(100vh - #{$pf-4-nav-bar-height});
  + }
  }
  .modal-title {
  