update demo code

Author: GregorBiswanger

ElectronNET.WebApp/Controllers/ShortcutsController.cs

@@ -1,6 +1,7 @@
 using ElectronNET.API;
 using ElectronNET.API.Entities;
 using Microsoft.AspNetCore.Mvc;
+using System.Threading.Tasks;
 
 namespace ElectronNET.WebApp.Controllers
 {
@@ -21,7 +22,7 @@ public IActionResult Index()
                     await Electron.Dialog.ShowMessageBoxAsync(options);
                 });
 
-                Electron.App.WillQuit += () => Electron.GlobalShortcut.UnregisterAll();
+                Electron.App.WillQuit += () => Task.Run(() => Electron.GlobalShortcut.UnregisterAll());
             }
 
             return View();

ElectronNET.WebApp/Views/Shortcuts/Index.cshtml

@@ -47,7 +47,7 @@
     await Electron.Dialog.ShowMessageBoxAsync(options);
 });
 
-Electron.App.WillQuit += () => Electron.GlobalShortcut.UnregisterAll();</code></pre>
+Electron.App.WillQuit += () => Task.Run(() => Electron.GlobalShortcut.UnregisterAll());</code></pre>
 
           <div class="demo-protip">
             <h2>ProTip</h2>