Omit manually added nights from some statistics

Some metrics become skewed if they incorporate manually added records/values, therefore manual records should not be incorporated by the app in these cases. For example average sleep duration or irregularity remain correct if I manually add an 8 hour sleep instead of the app measuring it. However, since snoring is automatically set to 0 in a manual record, this decreases the snoring average. Same thing should happen with deep sleep and deep sleep %, but for some reason these get a non-zero value in the mobile app which is incorrect behavior (it’s a guess by the app??), but they are set to 0 in SleepCloud. Both solutions introduce incorrect values into the statistics.