Revert "Merge branch 'qrLogin' into 'develop'"
I have to revert this. Two issues:
- the UX of the scanner is bad when there are more than 1 camera (eg. front and back on phone)
- the scanner almost can't scan our qr code on the card in realistic conditions. we need a better scanner. and a better qr code on the card!
This reverts merge request !26 (merged)