Flask-Session >= 0.4 required in requirements.txt

[pspiteri]

UPDATE: Sorry - just read the README.md in the app. Please feel free to delete my issue as I see you have raised that you've had issues with Flask-Session.

Hi. Running this app and the starter app results in the error "'Flask' object has no attribute 'session_cookie_name'". Details of the issue and the solution can be found at https://stackoverflow.com/questions/76139355/flask-object-has-no-attribute-session-cookie-name - I have implemented this solution and it works. In short, the issue is Flask >= 2.3.1 removed those names and a solution can either be to wind back the version of Flask or update the version of Flash-Session. Personally I prefer the latter - as of the date of raising this issue, this app's requirements.txt fixes the Flask-Session at 0.3.2 but does not set a fixed Flask version. So Flask is bang up to date but Flask-Session is not, causing the issue.