[Feature Request] Export as QR Code

[DaFlowah]

Is your feature request related to a problem? Please describe. Some 2FA apps (like Google Authenticator) support import as QR code. Currently Ente only supports export as text file.

Describe the solution you'd like Allow export of all codes as a single QR Code.

Describe alternatives you've considered N/A

Additional context N/A

[DaFlowah]

Somehow similar to https://github.com/ente-io/auth/issues/460