The service used to be named ResolveRemoteAccountService resolves local
accounts as well.

Rename Activitypub to ActivityPub

* Add render_views in more places

* Delegate methods from account to user with allow nil true, so that admin accounts show view renders when missing a user

* Use actual account instances in authorize follow controller spec

* Add spec for settings/imports controller

* Add failing spec for settings/imports#create

* Fix broken imports

* Refactor ImportWorker