Jetpack App: Screens in the QR Code Auth flow are not translated

[ovitrif]

Expected behavior

All screens in the app should be translated in the same language, depending on user's choice.

Actual behavior

The screens in the QR Code auth flow are not translated, while the other screens are.

Steps to reproduce the behavior

1. Launch Jetpack App
2. Change the language Me → App Settings → Interface Language (e.g. Dutch)
3. Go back, you should land on the Me screen
4. Tap Scan Login Code (3rd item)
5. On your computer, open a guest browser window and go to https://wordpress.com/log-in/qr
6. Scan the QR code from your computer with the Jetpack app
7. Notice The screens in the flow are not translated

qrcodeauth_i18n_issue.mp4

Tested on Samsung S8+, Android 9, JPAndroid 21.2 Beta