Send badgeOnly notifications in the same order as they were encrypted

Summary: This differential repeats functionality implemented in parent differential but for badgeOnly notifications.

Test Plan: The same as for parent differential but for badgeOnly notifs.

Reviewers: michal, kamil, ashoat

Reviewed By: ashoat

Subscribers: tomek, wyilio

Differential Revision: https://phab.comm.dev/D9821