zui: Find a cleaner way to implement header on scroll up

[raulkele]

Is your feature request related to a problem? Please describe.
In my opinion, listening to the window scroll event is generally unwanted, we should refactor the feature.
Describe the solution you'd like
This will require some research, but if there is a better way to activate the header on scrolling up we should implement that over listening to the scroll event. If such a thing is supported.

Initial implementation in #229 and #230 for reference.