Enable horizontal-swipe to change between categories

[Poliuk]

Enable swipe gesture to change from one category to the next.

• [x] URL has to be updated after the swipe
• [x] Horizontal menu should display the current category consistently
• [x] Analyze prefetch of the next category

Take in count that some elements of the horizontal menu might be external link, so the swiping should skip them.

[Poliuk]

blocked until #142 is done

[orballo]

This is working right now, but we have to wait to implement the final version of Swipe (https://github.com/worona/saturn-app-theme-worona/issues/142) and check if it's consistent.