Check (responsive) design
- Mobile design
- Icons for True/False values
- Group Note in week view
- Personal Notes in separate Tab
- Back to week view in lesson view
- Back to "My students" in person overview
- Tardiness time in lesson view
- Less space on mobil view of week view for lesson status icon
- Tab title "Week overview" to "Lesson documentation"
- Back buttons should include a label
- Align icon of "There are no unexcused lessons." better