PoliTO Students

Features
- Possibility to hide agenda events and their recurrences
- Added messages notification badge
- Show the professor’s message in provisional evaluations
- Handle locations outside PoliTO in bookings
- Moved the file saving folder to Documents on Android devices with SDK >29 to make them accessible
Fixes
- Agenda: switch to full week layout when events on agenda fall on the weekend and fix week filter to show dates from Monday to Sunday
- Correctly manage exams with no date