Don't truncate blogs or posts in Phame sidebar

Summary: Removes the CSS truncation, so it's easier to track drafts. Ref T9897

Test Plan: Really long draft titles.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Maniphest Tasks: T9897

Differential Revision: https://secure.phabricator.com/D16107