Add "plan badges" to group overview pages
Discovering the billing page is one of the largest hurdles in the upgrade process right now. This is something that an owner of a group does rarely so we need to design the experience accordingly. Billing pages are "hidden" behind the namespace and group settings, a user that doesn't know that will have trouble finding them.
Let's add plan badges to group overview pages. Only group owners will be able to see them, once clicked they take the user straight to the billing page.
This will also help reinforce the understanding that subscriptions are tied to groups on GitLab.com.
Edited by Matej Latin