Add an icon to aphlict connection status
Summary: A bit better styling, this adds an indication icon for if you're connected or not (and later, away, etc).
Test Plan: Test in Notifications menu, Conpherence full, Durable Column.
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin
Differential Revision: https://secure.phabricator.com/D16647