message: Query Browser: Add border-radius for series buttons
  To match the other buttons on the page.
diff: .query-browser__series-btn-wrap {
  border: 1px solid transparent;
  + border-radius: var(--pf-global--BorderRadius--sm);
  display: flex;
  height: 26px;
  padding: 2px;
  .query-browser__series-btn {
  border: 1px solid transparent;
  + border-radius: var(--pf-global--BorderRadius--sm);
  height: 20px;
  width: 20px;
  &--disabled {
  