Sessions created during the login flow v2 should be short lived to not leave an unexpected opened session in the browser.
This commit add a property to the session object to track its origin, and will close it as soon as possible, i.e., on the first non public page request.
Signed-off-by: Louis Chemineau <louis@chmn.me>
[skip ci]
Signed-off-by: Louis Chemineau <louis@chmn.me>