[Feature Request] Configurable route for session.handleInvalidation

[lfloyd117]

Currently here in the session service, we can provide a specific route configuration to handleAuthentication but not to handleInvalidation, as it always uses the rootUrl, which is an assumption that doesn't align with all projects.

It would be good to have a way to either provide a route/transition to handleInvalidation without having to wrap the service or telling it to not transition and let us handle the transition manually where we want to.