Fixed leftovers from the viewModel restructure. Repositories always have a verboseName now. Does not implement new logic to follow related models (e.g. motions->submitters).
Fixes#3921
Added a new set of icons and removed the old one. The new one can used just like the old one.
Changed old improper icons to new ones
- The 'save_alt'-icons are replaced by 'cloud_upload'
- The icon in the navigation for assignments is replaced by 'how_to_vote'
- The drag&drop icon 'unfold_more' is replaced by 'drag_indicator'
Used for internal apps as well as for plugins. The pluginpart is
currently missing, in fact that the main OpenSlides part is more
important. Apps can give their models and mainmenu entries.
Routes are not enabled, because the routes have to be static for webpack
to build the bundles. If we want to keep lazy loading, I see no
possibility to encapsulate the routes from the site-routing module.
