New binding mechanism: Expression tracking

src/ConsoleApp/FileTime.ConsoleUI.App/Startup.cs

@@ -37,6 +37,7 @@ public static class Startup
         services.TryAddSingleton<MainWindow>();
         services.TryAddSingleton<CommandPalette>();
         services.TryAddSingleton<Dialogs>();
+        services.TryAddSingleton<Timeline>();
         return services;
     }
 }