Add chapter 10 sample project

Chapter10/TemplateStudioSampleApp/Views/ShellPage.xaml.cs

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+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Controls;
+using Microsoft.UI.Xaml.Input;
+using Microsoft.UI.Xaml.Media;
+
+using TemplateStudioSampleApp.Contracts.Services;
+using TemplateStudioSampleApp.Helpers;
+using TemplateStudioSampleApp.ViewModels;
+
+using Windows.System;
+
+namespace TemplateStudioSampleApp.Views;
+
+// TODO: Update NavigationViewItem titles and icons in ShellPage.xaml.
+public sealed partial class ShellPage : Page
+{
+    public ShellViewModel ViewModel
+    {
+        get;
+    }
+
+    public ShellPage(ShellViewModel viewModel)
+    {
+        ViewModel = viewModel;
+        InitializeComponent();
+
+        ViewModel.NavigationService.Frame = NavigationFrame;
+        ViewModel.NavigationViewService.Initialize(NavigationViewControl);
+
+        // TODO: Set the title bar icon by updating /Assets/WindowIcon.ico.
+        // A custom title bar is required for full window theme and Mica support.
+        // https://docs.microsoft.com/windows/apps/develop/title-bar?tabs=winui3#full-customization
+        App.MainWindow.ExtendsContentIntoTitleBar = true;
+        App.MainWindow.SetTitleBar(AppTitleBar);
+        App.MainWindow.Activated += MainWindow_Activated;
+        AppTitleBarText.Text = "AppDisplayName".GetLocalized();
+    }
+
+    private void OnLoaded(object sender, Microsoft.UI.Xaml.RoutedEventArgs e)
+    {
+        TitleBarHelper.UpdateTitleBar(RequestedTheme);
+
+        KeyboardAccelerators.Add(BuildKeyboardAccelerator(VirtualKey.Left, VirtualKeyModifiers.Menu));
+        KeyboardAccelerators.Add(BuildKeyboardAccelerator(VirtualKey.GoBack));
+    }
+
+    private void MainWindow_Activated(object sender, WindowActivatedEventArgs args)
+    {
+        var resource = args.WindowActivationState == WindowActivationState.Deactivated ? "WindowCaptionForegroundDisabled" : "WindowCaptionForeground";
+
+        AppTitleBarText.Foreground = (SolidColorBrush)App.Current.Resources[resource];
+        App.AppTitlebar = AppTitleBarText as UIElement;
+    }
+
+    private void NavigationViewControl_DisplayModeChanged(NavigationView sender, NavigationViewDisplayModeChangedEventArgs args)
+    {
+        AppTitleBar.Margin = new Thickness()
+        {
+            Left = sender.CompactPaneLength * (sender.DisplayMode == NavigationViewDisplayMode.Minimal ? 2 : 1),
+            Top = AppTitleBar.Margin.Top,
+            Right = AppTitleBar.Margin.Right,
+            Bottom = AppTitleBar.Margin.Bottom
+        };
+    }
+
+    private static KeyboardAccelerator BuildKeyboardAccelerator(VirtualKey key, VirtualKeyModifiers? modifiers = null)
+    {
+        var keyboardAccelerator = new KeyboardAccelerator() { Key = key };
+
+        if (modifiers.HasValue)
+        {
+            keyboardAccelerator.Modifiers = modifiers.Value;
+        }
+
+        keyboardAccelerator.Invoked += OnKeyboardAcceleratorInvoked;
+
+        return keyboardAccelerator;
+    }
+
+    private static void OnKeyboardAcceleratorInvoked(KeyboardAccelerator sender, KeyboardAcceleratorInvokedEventArgs args)
+    {
+        var navigationService = App.GetService<INavigationService>();
+
+        var result = navigationService.GoBack();
+
+        args.Handled = result;
+    }
+}