Lock file maintenance

See merge request !66

Clean up initial router handling and add a default state

See merge request !65

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

It was using the click event but never removed the event listener

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

Allow globally overriding slots in the light dom of components and use it to override the auth-info slot in the Nextcloud file picker

matomo: make side-id and git-info strings

Closes #52

See merge request !63

Lock file maintenance

See merge request !64

They can in theory be arbitrary strings, so don't try to convert them
to a number.

Fixes #52