Follow-up from "Resolve "Styling of user, project and group avatars""

The following discussion from gitlab-ce!25098 should be addressed:

  • @lbennett started a discussion: (+1 comment)

    All sorted. I had an idea for a follow up issue more related to autocomplete than avatars.

    Screenshot_2019-02-22_at_17.44.51

    Maybe we should work out something to do with all so its clear that its a system provided type? Not in this MR though, this looks good as it is.

/cc @matejlatin @lbennett