Restructure project folders and remove obsolete files

src/components/project.vue

@@ -116,7 +116,8 @@ export default {
 			this.mapInitializing = false;
 		},
 		quit() {
-			this.lightbox.end();
+			this.lightbox.end(true);
+			this.lightbox = null;
 			this.removeMap();
 		},
 		async initOverview() {