message: Fix padding in `recently-pushed-branches-enhancements` on Firefox
  Fixes
diff: /* Pre "Repository refresh" layout */
  .rgh-recently-pushed-branches .Header .RecentBranches .btn {
  - text-indent: -999999px; /* Hide text */
  + font-size: 0; /* Hide text */
  }
  /* Pre "Repository refresh" layout */
  