Summary:
- Differential, Maniphest and Diffusion use slightly different styles for the object detail panels.
- Instead, use the same styles and CSS.
- Add object actions to Diffusion, including "Flag".
Test Plan: Looked at revisions, tasks and commit. Flagged and unflagged commits.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran, epriestley
Maniphest Tasks: T1041
Differential Revision: https://secure.phabricator.com/D2062
