Support adding anchors to routed pages

[Tarmil]

It would be nice to be able to link to router.Link(someRoute) + "#section1" to scroll to the section1 anchor in the linked page. Currently, the above link goes to the right page but doesn't scroll.

StackOverflow request for this: https://stackoverflow.com/questions/76785745/how-to-make-anchors-work-when-switching-between-two-routes-in-a-bolero-f-single