R1:5ea5b0c41c61

Update some PhamePost transactions

Summary: Cleans up some language, colors, etc.

Test Plan: Write lots of new posts, hide them, edit them, check history.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Maniphest Tasks: T9360

Differential Revision: https://secure.phabricator.com/D14914