❔ WPF NavigationService Implement NavigateBack

public class NavigationStore {
    private ViewModelBase? _currentViewModel;
    public ViewModelBase? CurrentViewModel {
        get => _currentViewModel;
        set {
            _currentViewModel?.Dispose();
            _currentViewModel = value;
            OnCurrentViewModelChanged();
        }
    }

    public event Action CurrentViewModelChanged;

    private void OnCurrentViewModelChanged() {
        CurrentViewModelChanged?.Invoke();
    }
}

namespace WPFWeather.Services.NavigationService;
public class NavigationService<TViewModel> where TViewModel : ViewModelBase {
    private readonly NavigationStore _navigationStore;
    private readonly Func<TViewModel> _createViewModel;

    public NavigationService(NavigationStore navigationStore, Func<TViewModel> createViewModel) {
        _navigationStore = navigationStore;
        _createViewModel = createViewModel;
    }

    public void Navigate() {
        _navigationStore.CurrentViewModel = _createViewModel();
    }
}

            services.AddTransient<WeatherHomeViewModel>();
            services.AddSingleton<Func<WeatherHomeViewModel>>((s) => () => s.GetRequiredService<WeatherHomeViewModel>());
            services.AddSingleton<NavigationService<WeatherHomeViewModel>>();

            services.AddTransient<WelcomeViewModel>();
            services.AddSingleton<Func<WelcomeViewModel>>((s) => () => s.GetRequiredService<WelcomeViewModel>());
            services.AddSingleton<NavigationService<WelcomeViewModel>>();

    public SetLocationViewModel(IWeatherProvider weatherProvider, AppStore appStore, NavigationService<WeatherHomeViewModel> weatherHomeNavigationService)