Link-Contents werden jetzt horizontal angezeigt, immer noch Problem, dass bei mehreren Items gestaucht wird

Added dynamic content resizing.

Added fullscreen_listener function and with it the automatic resize for entering and exiting the fullscreen mode

Nodes now display their name.
(Nodes without image are not clickable atm).

Added a detail view which is automatically opened on node click and fed with information based on the clicked node.

Further toned down background lightness and colors.

Added WIP version of bottom overlay.