Add suport for adding new items which are sorted without reloading the entrie list

Bitvault.Avalonia/App.axaml.cs

@@ -9,6 +9,8 @@ using Toolkit.Foundation;
 using Microsoft.Extensions.DependencyInjection.Extensions;
 using HotAvalonia;
 using Bitvault.Data;
+using System.Collections;
+using System.Collections.Generic;
 
 namespace Bitvault.Avalonia;
 
@@ -41,6 +43,9 @@ public partial class App : Application
                 {
                     args.AddServices(services =>
                     {
+                        services.AddTransient<IComparer<Item>>(provider => Comparer<Item>.Create((x, z) => x.Name!.CompareTo(z.Name)));
+                        services.AddCache<Item>();
+
                         services.AddTransient<IKeyGenerator, KeyGenerator>();
                         services.AddTransient<IEncryptor, AesEncryptor>();
                         services.AddTransient<IDecryptor, AesDecryptor>();
@@ -89,7 +94,7 @@ public partial class App : Application
 
                         services.AddTemplate<ItemHeaderViewModel, ItemHeaderView>();
 
-                        services.AddHandler<CreateItemHandler>();
+                        services.AddHandler<CreateItemHandler>(ServiceLifetime.Singleton);
                         services.AddHandler<ItemActivatedHandler>();
                     });
                 })!);