🐞 Control Panel "There is a problem with your session" page

[michaeljcollinsuk]

Describe the bug.

When a user logs in to the Control Panel, their session length is 1 hour. When this expires, they are redirected to a page that states there is a problem with their session, with a link to "reset your session":

To Reproduce

1. Log in to control panel
2. Wait an hour....
3. Refresh your page

Expected Behaviour

This information is not accurate - there is no "problem" with the session, it has simply expired. Therefore as a minmum, the text on this page should be updated to more accurately reflect the issue e.g. "Your session has expired, please click here to log back in".

However, now that the MFA requirement was disabled in #4557 we may have the opportunity to now implement a session refresh mechanism, so that we log the user back in programatically, removing the need for the redirect. We should be able to limit this "session refresh" for to a set time period (e.g. 12 hours) before we then redirect the user, and prompt them to manually log back in.

Additional context

Some further reading:
https://auth0.com/docs/secure/tokens/refresh-tokens
https://auth0.com/blog/balance-user-experience-and-security-to-retain-customers/