Allauth: use user sessions feature

[stsewd]

What's the problem this feature will solve?

Now that we are running the latest version of allauth, there is this cool feature that we could use. User sessions, basically allows a user to list all of their active sessions, and revoke them as needed.

https://docs.allauth.org/en/latest/usersessions/index.html

Describe the solution you'd like

Follow the steps from https://docs.allauth.org/en/latest/usersessions/index.html to add that feature :)