[Suggestion] Save Back-up codes as well

[AYA-123]

Describe the bug 🐛

E.g. Save backup code for twitter in case you can't receive text messages etc.

To Reproduce 🐣

No response

Expected behavior 🤔

No response

Screenshots 🧐

No response

How did you download tlock?

None

What is your operating system?

None

[eklairs]

1. You mean the backup codes that are provided to recover your account in case you lose your 2FA secret?
2. Or do you mean to backup some kind of code that is provided with text message 2FA in Twitter (I am not sure about this since it requires premium which I don't have )