Quicksand - fix project board page and quicksand
Summary: Fixes T7913. Collapse the separate board dropdown into the board projects behavior; we always need that anyway and now we can install the listener more granularly.
Test Plan:
- visted project board
- invoked create task, cancelled dialog
- visited project feed
- visited project board
- invoked create task, cancelled dialog (FAILED pre patch...!)
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin, epriestley
Maniphest Tasks: T7913
Differential Revision: https://secure.phabricator.com/D12599