navigation needs to be revised
in general:
- relation breadcrumbs <-> context menu in navigation bar is unclear (positioning), find a better solution?
- better item naming? (live annotator)
- use text-links instead of buttons to have the possibility to open a page via right click context menu in a new tab
- add "create"/"add buttons in context menu in navigation bar
desktop view:
- (DONE) show context menu in navigation bar
- (DONE) drawer shows main items only
mobile view:
- (DONE) hide context menu in navigation bar
- (DONE) drawer shows main items and subitems
- (DONE) insert timeline/video/grid titles for a better navigation understanding