Migliorata sincronizzazione dei dati

salesbook.Maui/MauiProgram.cs

@@ -58,6 +58,7 @@ namespace salesbook.Maui
             builder.Services.AddScoped<IIntegryApiService, IntegryApiService>();
             builder.Services.AddScoped<ISyncDbService, SyncDbService>();
             builder.Services.AddScoped<IManageDataService, ManageDataService>();
+            builder.Services.AddScoped<PreloadService>();
 
             //SessionData
             builder.Services.AddSingleton<JobSteps>();