Swap "Description" and "Invitees / Details" on Calendar event views
Summary:
Ref T11326. This reorders sections:
- Description (if present)
- Recurring event series info (if recurring)
- Invitees (this also has custom stuff, if it exists)
Test Plan: Viewed some events, saw more sensible order.
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T11326
Differential Revision: https://secure.phabricator.com/D16671