Links on badge card should be accessible

Summary: Ref T10710

Test Plan: Open user profile with badge, flip badge card, open awarder link.

Reviewers: epriestley, chad, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: chad, Korvin

Maniphest Tasks: T10710

Differential Revision: https://secure.phabricator.com/D15699