Return more transaction types in Conpherence notification menu
Summary: Unclear these are worth sending, but mostly seems useful. Returns getTitle for the transaction if it's not a message. Fixes T10683
Test Plan: Leave rooms, change names, add pictures.
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin
Maniphest Tasks: T10683
Differential Revision: https://secure.phabricator.com/D16658