feat: Update QuizService -> getRandomQuiz

services/QuizService.ts

@@ -184,10 +184,12 @@ export const useQuizService =  () => {
     };
 
     const getRandomQuiz = async (): Promise<QuizGenerateAnswer | HttpError> => {
+        const categories = await getCategories();
+        const difficulties = ['easy', 'medium', 'hard'];
         const requestBody = {
             amount: 10,
-            category: 10,
-            difficulty: "easy",
+            category: categories[Math.floor(Math.random() * categories.length)].id,
+            difficulty: difficulties[Math.floor(Math.random() * difficulties.length)],
         };
 
         try {