Fix gestione allegati e creato metodo di esportazione log

SteUp.Maui/App.xaml.cs

@@ -1,10 +1,14 @@
+using Microsoft.Extensions.Logging;
+using SteUp.Maui.Core.UtilityException;
+
 namespace SteUp.Maui
 {
     public partial class App
     {
-        public App()
+        public App(ILogger<App> logger)
         {
             InitializeComponent();
+            GlobalExceptionHandler.Register(logger);
         }
 
         protected override Window CreateWindow(IActivationState? activationState)