Possible solution for broken iOS notifications
Summary:
IMPORTANT: This differential is for test release purposes.
The context for this change is described here: https://linear.app/comm/issue/ENG-4453#comment-4d1770b3. We introduce dummy body to the encrypted notification to make sure we comply to apple docs. Additionally we make necessary changes to
NotificationService extension to prevent from displaying notification that contains ENCRYPTED text.
Test Plan: Build release iOS app. Ensure that notifications, rescinds and bade-only notifications work correctly
Reviewers: tomek, atul, bartek, ashoat
Reviewed By: ashoat
Differential Revision: https://phab.comm.dev/D8638