Two more questions for now:
1. Logging in with wrong credentials yields a WrongCredentialsException in the backend. This results in a CORS error in the frontend even though the CORSMiddleware is correctly configured. Even when I add a custom ErrorHandler to FastAPI and return a JSONResponse(200) I get the same CORS error in the frontend. Any ideas?
2. Password recovery via mail works, but email verification doesn't even though I add the EmailVerificationRecipe. No email is received.