text: Title: Show disabled blocks as disabled (greyed out and un-selectable) in the block list with a reason on hover (or similar) and add a separate block bool to hide blocks from the list
  Body: Right now, locally, it's challenging to know what blocks exist and what blocks you don't have configured vs. what blocks don't exist. Add this capability so we can still hide blocks on the platform. <br><br>You may need to play with the wording of hide vs disabled, etc