* fix: updated WrappedExpiringStorage tests and timer.unref calls
* fix: removed finalizable configs and inheritors that only used timer
* fix: updated test function to test setSafeInterval and timer.unref
Each IDP class using storage now has a different storage.
This way those classes don't have to worry about clashing keys anymore.
All internal storage is now in the /.internal/ container,
thereby making it easier to take the location of the internal data into account:
only 1 path needs to be blocked and a regex router handling internal data
differently only has to match 1 path as well.
