馃拕 merge 'ui-experiments' - Updates to substiutionplan and timetable UI
This includes major updates to the substitution plan and timetable UI and their structures. A more concise navigation and use should now be possible.
Honestly, I could go on and explain my changes here, but
- That would be work, and I am lazy and
- no one other than me will ever read this...
Maybe I should start putting screenshots in my merge requests, but