R1:b9ff34dbb0f1

Style layout-links in phui-source-sans

Summary: These should be {$blue} too.

Test Plan: Link to a file.

Reviewers: btrahan, epriestley

Reviewed By: epriestley

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D12624