Minor cleanup for task rendering in Daemons

Summary:
Fixes two issues:

• When rendering a task's details, we currently issue a policy-oblivious query. Instead, issue a policy-aware query.
• The formatting is a little bit weird, with the top half in a box and the bottom half with an older style. Make them consistent.

Test Plan: Looked at the detail pages for several tasks in queue.

Reviewers: btrahan, chad

Reviewed By: chad

CC: aran

Differential Revision: https://secure.phabricator.com/D7812