This reverts commit 421d92f3.

In case the current state is the default one we don't redirect.
This gets rid of the initial redirect/histroy entry when loading the page.

If the current state can't be used to generate a path just fall back
to the current path

Use a dbp-rpovider in the app shell to use the attributes auth, requested-login-status and analytics-event only locally

This happens for example if we access "/dbp-signature.html" in which case the
router interprets the file name as a language.