Reduce size of "Unbreak Now" and "Needs Triage" panels when no action is
required
Summary: Make these things like 1/4th the size if they aren't actionable.
Test Plan: Loaded home page with actionable, unactionable panels.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran, epriestley
Differential Revision: https://secure.phabricator.com/D1613