Follow-up from "Issue 259 improvements to image search"

The following discussions from !391 (merged) should be addressed:

• @cmart started a discussion:

  Why store these in model.style and in the project? This feels duplicative (and possibly confusing to other/future contributors) unless both exist for a good reason.

• @cmart started a discussion:

  Is this still a valid todo?

Update:

• Ensure that tags for images which are excluded do not show up in the tag cloud.