Proposed change

In case the user has activated they will no longer be allowed to access the main application.
Instead, they will be redirected to a form to enter a verification code.
Only after this has succeeded will they be redirected to the main application.

This change is required after the backend change, as the backend now enforces the 2factor to be used or it will deny with 403 on all resources.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature (which adds functionality to the application)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes Add the 2-factor authentication screen back in #12

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• Tests have been added to verify that the new code works.