Allow System User Roles to either be edited or to be deleted

Documentation says: "You cannot edit the Admin and Standard User roles" and that is true. But I think a role that can't be edited - like "Standard User" - is borderline useless, and I'd love to be able to delete it. Or edit and rename it.

If you can't edit it, you should at least be able to delete it. And if you can't delete it, you should at least be able to edit it. 🙂