R1:2f5dedc97e2c

More Pholio CSS updates

Summary: Pholio CSS tweaks and fixes, many little nudges

Test Plan:
Reload Pholio Mock page

{F167109}

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D9566