- Dark / light mode a funcionar no lado do aluno

- Atualização dos ficheiros markdown.

lib/features/quiz/presentation/pages/quiz_page.dart

@@ -1,6 +1,5 @@
 import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
-import '../../../../core/theme/app_colors.dart';
 
 class QuizPage extends StatelessWidget {
   final String quizId;
@@ -17,22 +16,25 @@ class QuizPage extends StatelessWidget {
         context.go('/quiz');
       },
       child: Scaffold(
-        backgroundColor: AppColors.background,
+        backgroundColor: Theme.of(context).colorScheme.background,
         appBar: AppBar(
           title: Text('Quiz $quizId'),
-          backgroundColor: AppColors.surface,
-          foregroundColor: AppColors.textPrimary,
+          backgroundColor: Theme.of(context).colorScheme.surface,
+          foregroundColor: Theme.of(context).colorScheme.onSurface,
           elevation: 0,
         ),
-        body: Center(
-          child: Text(
-            'Quiz Page - ID: $quizId\nComing Soon',
-            style: const TextStyle(
-              fontSize: 24,
-              fontWeight: FontWeight.bold,
-              color: AppColors.textPrimary,
+        body: Container(
+          decoration: BoxDecoration(
+            gradient: LinearGradient(
+              begin: Alignment.topLeft,
+              end: Alignment.bottomRight,
+              colors: [
+                Theme.of(context).colorScheme.background,
+                Theme.of(context).colorScheme.primary.withOpacity(0.1),
+                Theme.of(context).colorScheme.secondary.withOpacity(0.05),
+                Theme.of(context).colorScheme.background,
+              ],
             ),
-            textAlign: TextAlign.center,
           ),
         ),
       ),