R1:b84454699c8a

Dashboard CSS for Pinboards

Summary: Just a quick pass at making Macro/Pholio panels look not broken. May need longer rethinking to be *good*.

Test Plan: Add a Macro Panel

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D9755