[Redesign] Update Phriction UI

Summary: Ref T8099, convert to StatusIcon, clean up some clowny tables. Remove old CSS.

Test Plan: Test history, diff pages. Grep for CSS use.

Reviewers: epriestley, btrahan

Reviewed By: btrahan

Subscribers: Korvin, epriestley

Maniphest Tasks: T8099

Differential Revision: https://secure.phabricator.com/D13056