added access variable to exams soo we can distinguish private, public and confidential exams and also bugfixes and improvements

src/components/ExamEditor/SettingsEditor/level.tsx

@@ -38,7 +38,7 @@ const LevelSettings: React.FC = () => {
         difficulty,
         sections,
         minTimer,
-        isPrivate,
+        access,
     } = useExamEditorStore(state => state.modules[currentModule]);
 
     const { localSettings, updateLocalAndScheduleGlobal } = useSettingsState<LevelSectionSettings>(
@@ -200,7 +200,7 @@ const LevelSettings: React.FC = () => {
                 module: "level",
                 id: title,
                 difficulty,
-                private: isPrivate,
+                access,
             };
 
             const result = await axios.post('/api/exam/level', exam);
@@ -243,7 +243,7 @@ const LevelSettings: React.FC = () => {
             isDiagnostic: false,
             variant: undefined,
             difficulty,
-            private: isPrivate,
+            access,
         } as LevelExam);
         setExerciseIndex(0);
         setQuestionIndex(0);