FIX: Reviewables should not be created for users until they are active

Conversely, if a user is deactivated the reviewable should automatically
be rejected.

Before this fix, if a user was not active they'd still show in the
review queue but without an "Approve" button which was confusing.

app/controllers/admin/users_controller.rb

@@ -310,7 +310,7 @@ class Admin::UsersController < Admin::AdminController
 
   def deactivate
     guardian.ensure_can_deactivate!(@user)
-    @user.deactivate
+    @user.deactivate(current_user)
     StaffActionLogger.new(current_user).log_user_deactivate(@user, I18n.t('user.deactivated_by_staff'), params.slice(:context))
     refresh_browser @user
     render body: nil