[add-otp] add otp by QR image

decode qr code https://betterprogramming.pub/how-to-generate-and-decode-qr-codes-in-python-a933bce56fd0
remove qr code export

[sha-1 and sha-3 support]

SHA-1 SHA-3 support

[hotp-support]

hotp support

[shipment]

Platform packages:

apt - brew
docker

[bug]

hide cursor when counting
counter holds at 0 second and starts at wrong value
if there are no codes registered, then...

[desktop-apps]

Electron?