Updated playlist view name. Added custom title bar.

Harmonia.WinUI/MainWindow.xaml.cs

@@ -4,8 +4,18 @@ namespace Harmonia.WinUI;
 
 public sealed partial class MainWindow : Window
 {
+    private const string ApplicationTitle = "Harmonia";
+
     public MainWindow()
     {
         InitializeComponent();
+        InitializeTitleBar();
+    }
+
+    private void InitializeTitleBar()
+    {
+        Title = ApplicationTitle;
+        ExtendsContentIntoTitleBar = true;
+        SetTitleBar(AppTitleBar);
     }
 }