Basic touchups to Phortune UI

Summary: This is just a quick pass to fix a few bugs and spacing issues, Phortune itself could probably use some more custom UI, but that'll require some thought and abstraction. This also adds a new taller table CSS, which I mayyyy make automatic on tables with few rows, we'll see.

Test Plan: Browsed my Phortune account, tested new spacing on admin for 'full effect'

Reviewers: epriestley, btrahan

Reviewed By: btrahan

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D12115