Nil Redirect Fix #187308375

[tofarr]

I think this is a path nobody expected to ever get run in prod, but it did actually happen (https://codeforamerica.sentry.io/issues/5096696710/?project=1880327&referrer=pivotal_plugin - that user who seemed to get the return status as accepted when transferring data from the IRS but later not accepted when they submitted.) So it needed some love:

• Added translations for the error message
• Always redirect back to return-state (Using the referrer will not work as there is not guaranteed to be a referrer.

Steps to reproduce the issue:

• Open a new incognito tab, start a new intake, and get past the landing page:

• Try to view a submission pdf which is not connected to the current intake. e.g.: https://statefile.pr-4422.getyourrefund-testing.org/en/ny/questions/submission_pdfs/12345
• Instead of an error, you should now be taken back to sign in

[github-actions]

Heroku app: https://gyr-review-app-4422-a5f2cee2c293.herokuapp.com/
View logs: heroku logs --app gyr-review-app-4422 (optionally add --tail)