Fix e migliorati caricamenti

salesbook.Maui/App.xaml.cs

@@ -1,20 +1,15 @@
-using CommunityToolkit.Mvvm.Messaging;
-
 namespace salesbook.Maui
 {
     public partial class App : Application
     {
-        private readonly IMessenger _messenger;
-        
-        public App(IMessenger messenger)
+        public App()
         {
             InitializeComponent();
-            _messenger = messenger;
         }
 
         protected override Window CreateWindow(IActivationState? activationState)
         {
-            return new Window(new MainPage(_messenger));
+            return new Window(new MainPage());
         }
     }
 }