dealing properly with morning questionnaire notification

timestamp for last morning questionnaire, checks to notify within [morning -3h, morning] only once a day

solving #338 
Add here:
```
// Notify up to 3 hours after opening of bother window
startIfTodayLast.add(Calendar.HOUR_OF_DAY, 3);
```
Which makes 24h - 3h - 3h = 18h