Feature request: Enable support for Google Authenticator export

[Araraura]

I wanted to ask for the ability to allow importing 2FA codes from Google Authenticator over to Tofu. Google has a feature to export the 2FA codes via a scannable QR code, but when you attempt to read this code with Tofu, it won't recognize it and say that it's invalid.

I'm not sure if that means that the QR code only works for Google Authenticator so it's only over different phones, but maybe you can look into it if possible?

[mvolpato]

That is valid only for Google Authenticator (in case you want to move your codes from an old device to a new one)