Reminder to share a positive test result (EXPOSUREAPP-3551) (#1556)

* Extend NotificationHelper with functionality to schedule repeating notifications.

* Enable cancelation of recurring notifications

* Only show two positive test reminders

* Implement proper positive test result reminder triggers

* please ktlint

* Reset notification on app reset via settings

* Extract positive test result notification logic in an injectable service

* Add tests

* Fix injection issue of NotificationReceiver

* Reset states of the SubmissionRepository on app reset via settings menu

* Fix ktlint issue

* add more logs

Co-authored-by: harambasicluka <64483219+harambasicluka@users.noreply.github.com>