/themes keyboard arrow keys not working properly for navigation

[danieleguido]

Keyboard scrolling does not work as expected. Single click on the arrow does not change page, requires to keep arrow pressed.

[uf0]

We previously decided not to use arrow click to change page. Do we want to have it back?

[lwieneke]

Feedback comes from user testing: as the description states "use your mouse or the arrows to read the story" users tried the keyboard arrows. Furthermore: keyboard navigation is not deactivated, so keyboard arrows change the page but not in an expected way. Hence: either fix keyboard navigation or remove it alltogether We'll change the text