- Dark / light mode a funcionar no lado do aluno

- Atualização dos ficheiros markdown.

docs/CHANGELOG.md

@@ -87,6 +87,29 @@
   - Loading state with CircularProgressIndicator
 
 ### Fixed
+- **Settings Profile Card UI** - Fixed white background and duplicate email display
+  - Background now uses Theme.of(context).colorScheme.surface instead of hardcoded white
+  - User info displays displayName (bold, larger) on top, email (smaller) below
+  - File: lib/features/settings/presentation/pages/profile_edit_page.dart
+
+- **Signup Page Input Field Theming** - Fixed dark backgrounds in light mode
+  - Input fields now use conditional background based on theme brightness
+  - Light mode: surface color, Dark mode: surfaceContainerHighest
+  - Applied to name, email, and password fields
+  - File: lib/features/auth/presentation/pages/signup_page.dart
+
+- **Dashboard Progress Container Theming** - Fixed dark background in light mode
+  - "Ótimo progresso!" container now uses conditional background
+  - Light mode: surface color, Dark mode: surfaceContainerHighest
+  - File: lib/features/dashboard/presentation/widgets/profile_section_widget.dart
+
+- **Authentication Navigation** - Enhanced back button behavior
+  - Removed AppBar from login and signup pages
+  - Added PopScope for Android back button navigation to role-selection
+  - Added custom positioned back button with aesthetic design
+  - Positioned at top: 50 to avoid notification bar overlap
+  - Files: lib/features/auth/presentation/pages/login_page.dart, signup_page.dart
+
 - **Unified Quick Action Cards Text Style**
   - "Upload Conteúdo" and "Criar Quiz" cards now match "Criar Turma" text alignment
   - All cards use `Column` with `crossAxisAlignment: CrossAxisAlignment.start` for text section