- write log file header

Mystify/App.axaml.cs

@@ -32,7 +32,7 @@ namespace Mystify
         private MainWindowViewModel? _mainWindowViewModel;
         
         public override void Initialize() => AvaloniaXamlLoader.Load(this);
-        public override void OnFrameworkInitializationCompleted()
+        public override async void OnFrameworkInitializationCompleted()
         {
             if (Design.IsDesignMode)
                 return;
@@ -47,6 +47,8 @@ namespace Mystify
             _loggerInitializer = loggerInitializerFactory.Create(_log);
             _loggerInitializer.Init();
 
+            await _log.WriteLogHeader<App>();
+
             MainModel mainModel = _kernel.Resolve<MainModel>();
             _mainWindow = new MainWindow();
             _mainWindowViewModel = new MainWindowViewModel(mainModel, _mainWindow);