Merge remote-tracking branch 'origin/dev' into feat/pagina-om-leerpaden-te-bekijken-#41

# Conflicts:
#	frontend/src/App.vue
#	frontend/src/components/MenuBar.vue
#	frontend/src/main.ts

backend/src/controllers/learning-objects.ts

@@ -39,7 +39,7 @@ export async function getAllLearningObjects(req: Request, res: Response): Promis
         learningObjects = await learningObjectService.getLearningObjectIdsFromPath(learningPathId);
     }
 
-    res.json(learningObjects);
+    res.json({ learningObjects: learningObjects });
 }
 
 export async function getLearningObject(req: Request, res: Response): Promise<void> {