Add settings screen

moneymgr_mobile/lib/utils/extensions.dart

@@ -25,7 +25,8 @@ extension BuildContextX on BuildContext {
   void showAppLicensePage() => showLicensePage(
     context: this,
     useRootNavigator: true,
-    applicationName: 'DummyMart',
+    applicationName: 'MoneyMgr',
+    applicationLegalese: '(c) Pierre HUBERT 2025 - ${DateTime.now().year}'
   );
 }