When clicking on zettel -> zettel gets bigger and moves to top (where in zettelPage the name of zettel is)
one can swipe down on zettel (when at top) to go back to home page -> animation again moves top bar of zettelPage to the zettel card in zettelList
When clicking on zettel -> zettel gets bigger and moves to top (where in zettelPage the name of zettel is)
one can swipe down on zettel (when at top) to go back to home page -> animation again moves top bar of zettelPage to the zettel card in zettelList