Clean up mobile spacing on info views in a column

Summary: When we have an info view in a column, the css isn't specific enough to override the core info-view css.

Test Plan: Review an importing repository, see info view properly spaced.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D16331