Reorder audit actions to match Differential

Summary:
These trip me up every time because Differential has:

Comment, Accept, Request Changes, Resign, Commandeer, Add Reviewers, Add Subscribers

while audits currently show:

Comment, Add Subscribers, Add Auditors, Accept, Raise Concern, Resign

Now they're more or less in the same order which helps with muscle memory.

Test Plan: Careful inspection.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D15323