Added nl,de langs to menu

lib/ui/screens/fifth_screen.dart

@@ -44,6 +44,10 @@ class FifthScreen extends StatelessWidget {
                           value: Locale('ca'),
                           child: Text('Català'),
                         ),
+                        DropdownMenuItem<Locale>(
+                          value: Locale('de'),
+                          child: Text('Deutsch'),
+                        ),
                         DropdownMenuItem<Locale>(
                           value: Locale('en'),
                           child: Text('English'),
@@ -56,6 +60,10 @@ class FifthScreen extends StatelessWidget {
                           value: Locale('fr'),
                           child: Text('Français'),
                         ),
+                        DropdownMenuItem<Locale>(
+                          value: Locale('nl'),
+                          child: Text('Nederlands'),
+                        ),
 
                         // Add more DropdownMenuItem for more languages
                       ],