Fixes #4705: Updates repository bulk deletion to delete via dynflow
actions and properly remove the repository from Katello and Pulp. This
prevented the ability to create a repository with the same name after deleting
it.
Fixes #4688: Prevents ugly indentation of row headers on Firefox, adds
back the missing environment selector icon, and sets the proper header
row height.
Merge pull request #3845 from ehelms/fixes-4688

Fixes #4688: Prevents ugly indentation of row headers on Firefox, adds
Merge pull request #3841 from ehelms/fixes-4705

Fixes #4705: Updates repository bulk deletion to delete via dynflow