single_session feature

[eFe-666]

Hi @mkhorasani ! I have been using Streamlit-Authenticator for some weeks now with multiple users (50+ users) and I love it. Great work, keep it up!

Now i wanted to explore the single_session feature (1 session per user). It seems to work ok, login changes the 'logged_in' to true. Then logout changes the 'logged_in' to false.

The problem I'm having (maybe I have something missing) is if the user closes the browser after logging in and then wants to re-login from a different browser/device. In the config.yaml file it stays as logged_in true, because he didn't use the logout button.

Is there a way to tackle this scenario?