updateGroupInterval method
Implementation
Future<void> updateGroupInterval(String groupID, Duration duration) async {
final safeDuration =
duration.inMilliseconds < 1 ? const Duration(minutes: 1) : duration;
await AppPreferences.private
.setInt(_everyKey(groupID), safeDuration.inMilliseconds);
await stopGroup(groupID);
await enableGroup(groupID);
}