Redirected to account creation page when scanning an invalid code

[bsurd]

Steps to reproduce

1. Start the app, tap on the 3 dot menu and select "Settings"
2. Tap on "Pair with Firefox Desktop"
3. Scan a random QR Code on your Desktop

Expected behaviour

• An "Invalid QR code" notification is displayed

Actual behaviour

• The user is redirected to the "Create a Firefox Account" page
• Update: No longer redirected, tho an "Invalid QR code" notification is still not displayed

Device information

• Android devices:
  • Nexus 5 (Android 6.0.1)
  • Nokia 6 (Android 7.1.1)
  • Samsung Galaxy S8 (Android 8)
  • Google Pixel (Android 9)
• Reference Browser version: 1.0 (Build #10351419)

[vladikoff]

@csadilek did we want to close this as WONTFIX? we talked about it in one of the PRs and a meeting