feat: implement retake exam functionality and update translations for exam status

frontend/src/components/Workspace.tsx

@@ -83,7 +83,7 @@ export default function Workspace({ onLoadExam }: Props) {
 
       <main className="workspace-main">
         {activeTab === 'exams' && <MyExams onLoadExam={onLoadExam} />}
-        {activeTab === 'results' && <MyResults />}
+        {activeTab === 'results' && <MyResults onLoadExam={onLoadExam} />}
         {activeTab === 'settings' && <Settings />}
       </main>
     </div>