When closing the browser, Proton Pass should be automatically logged out.

The current default option is "Stay logged in" which is a CRITICAL security bug.

This option would be allowed if the user intentionally checked it.

At a minimum, the following options should be available:
- log out after closing the browser
- log out after <nnn> minutes and unlock with a PIN
- stay logged in (checking should prompt you about the potential risk of staying logged in after closing the browser).