Settings, correção de light/darkmode do dispositivo (e adição da escolha entre modos nas settings) e correção do tipo de letra no textfield do chatbot

lib/core/routing/app_router.dart

@@ -1,5 +1,9 @@
 import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
+import '../../shared/presentation/pages/not_found_page.dart';
+import '../../features/settings/presentation/pages/settings_page.dart';
+import '../../features/settings/presentation/pages/profile_edit_page.dart';
+import '../../features/settings/presentation/pages/help_page.dart';
 import '../../features/auth/presentation/pages/login_page.dart';
 import '../../features/auth/presentation/pages/signup_page.dart';
 import '../../features/dashboard/presentation/pages/student_dashboard_page.dart';
@@ -10,7 +14,6 @@ import '../../features/quiz/presentation/pages/quiz_page.dart';
 import '../../features/profile/presentation/pages/profile_page.dart';
 import '../../features/splash/presentation/pages/splash_page.dart';
 import '../../features/auth/presentation/pages/role_selection_page.dart';
-import '../../shared/presentation/pages/not_found_page.dart';
 
 /// App Router Configuration
 class AppRouter {
@@ -24,6 +27,7 @@ class AppRouter {
   static const String quizList = '/quiz';
   static const String quiz = '/quiz/:quizId';
   static const String profile = '/profile';
+  static const String settings = '/settings';
 
   // Nested route paths (without leading slash)
   static const String tutorNested = 'tutor';
@@ -50,53 +54,28 @@ class AppRouter {
         builder: (context, state) => const RoleSelectionPage(),
       ),
 
-      // Authentication Routes
+      // Login
       GoRoute(
         path: login,
         name: 'login',
-        builder: (context, state) {
-          final selectedRole = state.uri.queryParameters['role'];
-          return LoginPage(selectedRole: selectedRole);
-        },
+        builder: (context, state) => const LoginPage(),
       ),
 
+      // Signup
       GoRoute(
         path: signup,
         name: 'signup',
-        builder: (context, state) {
-          final selectedRole = state.uri.queryParameters['role'];
-          return SignupPage(selectedRole: selectedRole);
-        },
+        builder: (context, state) => const SignupPage(),
       ),
 
-      // Dashboard Routes
+      // Student Dashboard
       GoRoute(
         path: studentDashboard,
         name: 'studentDashboard',
         builder: (context, state) => const StudentDashboardPage(),
-        routes: [
-          // Nested routes for student features
-          GoRoute(
-            path: tutorNested,
-            name: 'studentTutor',
-            builder: (context, state) => const TutorChatPageSimple(),
-          ),
-          GoRoute(
-            path: quizListNested,
-            name: 'quizList',
-            builder: (context, state) => const QuizListPage(),
-          ),
-          GoRoute(
-            path: quizNested,
-            name: 'quiz',
-            builder: (context, state) {
-              final quizId = state.pathParameters['quizId']!;
-              return QuizPage(quizId: quizId);
-            },
-          ),
-        ],
       ),
 
+      // Teacher Dashboard
       GoRoute(
         path: teacherDashboard,
         name: 'teacherDashboard',
@@ -131,6 +110,27 @@ class AppRouter {
         builder: (context, state) => const ProfilePage(),
       ),
 
+      // Settings Route
+      GoRoute(
+        path: settings,
+        name: 'settings',
+        builder: (context, state) => const SettingsPage(),
+        routes: [
+          // Profile Edit Route
+          GoRoute(
+            path: 'profile-edit',
+            name: 'profileEdit',
+            builder: (context, state) => const ProfileEditPage(),
+          ),
+          // Help Route
+          GoRoute(
+            path: 'help',
+            name: 'help',
+            builder: (context, state) => const HelpPage(),
+          ),
+        ],
+      ),
+
       // AI Tutor Route (independent)
       GoRoute(
         path: tutor,
@@ -179,6 +179,10 @@ class AppRouter {
     context.go(profile);
   }
 
+  static void goToSettings(BuildContext context) {
+    context.go(settings);
+  }
+
   static void goBack(BuildContext context) {
     context.pop();
   }