feat: (frontend) queries teacher + test controller teacher

backend/src/services/teachers.ts

@@ -106,6 +106,9 @@ export async function getTeacherQuestions(username: string, full: boolean): Prom
     const learningObjectRepository: LearningObjectRepository = getLearningObjectRepository();
     const learningObjects: LearningObject[] = await learningObjectRepository.findAllByTeacher(teacher);
 
+    // console.log(learningObjects)
+    // TODO returns empty
+
     if (!learningObjects || learningObjects.length === 0){
         return [];
     }