Feature - banned user functionality added

[ihsaan-ullah]

Description

Now we can ban a user from the django admin or django shell. An additional filter is added to filter banned users. Banned status is also shown in the users list table in django admin

Manual Intervention

docker compose exec django python manage.py migrate
docker compose exec django python manage.py collectstatic --no-input

Screenshots

Django admin interface

Banned user page for page visits

Banner user response when calling an api

Documentation

Documentation updated for Administrative procedures to show how to ban/unban` users

Issues this PR resolves

• Ban users feature #1909

A checklist for hand testing

• ban a user and check that you cannot access any page or api

Checklist

• Code review by me
• Hand tested by me
• I'm proud of my work
• Code review by reviewer
• Hand tested by reviewer
• CircleCi tests are passing
• Ready to merge

[ihsaan-ullah]

This is a first version. We can improve it after getting team's feedback