- Dark / light mode a funcionar no lado do aluno

- Atualização dos ficheiros markdown.

lib/shared/presentation/pages/loading_page.dart

@@ -1,25 +1,29 @@
 import 'package:flutter/material.dart';
-import '../../../../core/theme/app_colors.dart';
 
 class LoadingPage extends StatelessWidget {
   const LoadingPage({super.key});
 
   @override
   Widget build(BuildContext context) {
-    return const Scaffold(
-      backgroundColor: AppColors.background,
+    return Scaffold(
+      backgroundColor: Theme.of(context).colorScheme.background,
       body: Center(
         child: Column(
           mainAxisAlignment: MainAxisAlignment.center,
           children: [
             CircularProgressIndicator(
               strokeWidth: 3,
-              valueColor: AlwaysStoppedAnimation<Color>(AppColors.primaryBlue),
+              valueColor: AlwaysStoppedAnimation<Color>(
+                Theme.of(context).colorScheme.primary,
+              ),
             ),
-            SizedBox(height: 24),
+            const SizedBox(height: 24),
             Text(
               'Loading...',
-              style: TextStyle(fontSize: 16, color: AppColors.textSecondary),
+              style: TextStyle(
+                fontSize: 16,
+                color: Theme.of(context).colorScheme.onSurfaceVariant,
+              ),
             ),
           ],
         ),

lib/shared/presentation/pages/not_found_page.dart

@@ -1,5 +1,4 @@
 import 'package:flutter/material.dart';
-import '../../../../core/theme/app_colors.dart';
 import '../../../../l10n/app_localizations.dart';
 
 class NotFoundPage extends StatelessWidget {
@@ -9,33 +8,37 @@ class NotFoundPage extends StatelessWidget {
   Widget build(BuildContext context) {
     final l10n = AppLocalizations.of(context)!;
     return Scaffold(
-      backgroundColor: AppColors.background,
+      backgroundColor: Theme.of(context).colorScheme.background,
       appBar: AppBar(
         title: Text(l10n.pageNotFound),
-        backgroundColor: AppColors.surface,
-        foregroundColor: AppColors.textPrimary,
+        backgroundColor: Theme.of(context).colorScheme.surface,
+        foregroundColor: Theme.of(context).colorScheme.onSurface,
         elevation: 0,
       ),
       body: Center(
         child: Column(
           mainAxisAlignment: MainAxisAlignment.center,
           children: [
-            const Icon(Icons.error_outline, size: 64, color: AppColors.error),
+            Icon(
+              Icons.error_outline,
+              size: 64,
+              color: Theme.of(context).colorScheme.error,
+            ),
             const SizedBox(height: 16),
             Text(
               l10n.pageNotFound,
-              style: const TextStyle(
+              style: TextStyle(
                 fontSize: 24,
                 fontWeight: FontWeight.bold,
-                color: AppColors.textPrimary,
+                color: Theme.of(context).colorScheme.onSurface,
               ),
             ),
             const SizedBox(height: 8),
             Text(
               'A página que procura não existe.',
-              style: const TextStyle(
+              style: TextStyle(
                 fontSize: 16,
-                color: AppColors.textSecondary,
+                color: Theme.of(context).colorScheme.onSurfaceVariant,
               ),
             ),
           ],