change order of auth decorators

@czue 

`domain_admin_required` requires `couch_user` on `request` which gets set by `login_or_digest`

Introduced here: https://github.com/dimagi/commcare-hq/commit/22739abfff04dc24154aee317b8a94be80eba51c#diff-d76c5e3466d0c10be90787ea041b317cR97