fix(pat navigation): Don't check query string and hash fragments.

[thet]

When setting navigation markers based on URL comparison do not set the query string and hash fragments. When using hash navigation within one page, use pat-scroll to mark items as current.

This fixes a problem described in: https://github.com/euphorie/Euphorie/pull/447#issuecomment-1259660758

It has the drawback that URL based detection of the current item when using navigation based on query strings or hash fragments (e.g. a table of contents) would not be possible anymore. But that might be corner cases.

[reinhardt]

Did you consider Ale's suggestion of making this configurable?

[thet]

Will do that