Suggestion: Migrate to flask-jwt-extended

Suggestion: Consider Replacing flask-jwt with flask-jwt-extended

Rationale:

• flask-jwt is inactive (dead) the last commit was 9 years ago and it's quite likely it will/may not work with current version of python.
• flask-jwt-extended is actively maintained and provides more functionality.

If the old flask-jwt doesn't work with python 3.11+ then its broken anyway and users will need to replace, otherwise they will need to migrate to newer toolkit.