message: Fix alignment of the active cbar item indicator
diff: display: block
  position: relative
  margin-bottom: $cbar-item-spacing
  - width: $cbar-item-size - 2px
  - height: $cbar-item-size - 2px
  + width: $cbar-item-size
  + height: $cbar-item-size
  .-blip
  .-notification-count
  