Only show profile status when calendar app installed

Summary:
If the calendar app is not installed we don't show the status.
Origianlly the idea was to only show the status if the viewer had access to
the app, but for display purposes this seems fine.

Fixes T5087

Test Plan: View with and without calendar installed

Reviewers: epriestley, Blessed Reviewers

Reviewed By: epriestley, Blessed Reviewers

Subscribers: epriestley, Korvin

Maniphest Tasks: T5087

Differential Revision: https://secure.phabricator.com/D9582