Improve vault navifaiton

Bitvault/FilterVaultNavigationViewModel.cs

@@ -0,0 +1,35 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using Toolkit.Foundation;
+
+namespace Bitvault;
+
+public partial class FilterVaultNavigationViewModel(IServiceProvider provider,
+    IServiceFactory factory,
+    IMediator mediator,
+    IPublisher publisher,
+    ISubscriber subscriber,
+    IDisposer disposer,
+    string name) :
+    ObservableViewModel(provider, factory, mediator, publisher, subscriber, disposer),
+    IVaultNavigationViewModel,
+    INotificationHandler<Vault<Activated>>,
+    INotificationHandler<Vault<Deactivated>>
+{
+    [ObservableProperty]
+    private bool activated;
+
+    [ObservableProperty]
+    private bool selected;
+
+    public Task Handle(Vault<Deactivated> args,
+        CancellationToken cancellationToken = default) =>
+            Task.FromResult(Activated = false);
+
+    public Task Handle(Vault<Activated> args,
+        CancellationToken cancellationToken = default) =>
+            Task.FromResult(Activated = true);
+
+    [RelayCommand]
+    public void Invoke() => Publisher.Publish(Vault.As(new Selected<string>(name)));
+}