Summary:
Ref T11114. Differential has more actions than it once did, and may have further actions in the future.
Make this dropdown a little easier to parse by grouping similar types of actions, like "Accept" and "Reject".
(The action order still needs to be tweaked a bit.)
Test Plan: {F2274526}
Reviewers: chad
Reviewed By: chad
Subscribers: eadler
Maniphest Tasks: T11114
Differential Revision: https://secure.phabricator.com/D17114
