R1:a339e6de9e34

Update Conpherence layout for logged out view

Summary: Fixes T9217, adds detection for logged in users and adjusts the layout accordingly.

Test Plan: View logged in and logged out Conpherence

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Maniphest Tasks: T9217

Differential Revision: https://secure.phabricator.com/D14002