implement Demo App sections: Dialogs, Menu, Tray, Shell, CrashHang, Notification, Shortcuts etc. Fix some API bugs and implement GlobalShortcut-, Shell- and WebContents-API.

ElectronNET.WebApp/Controllers/ShortcutsController.cs

@@ -0,0 +1,26 @@
+using ElectronNET.API;
+using ElectronNET.API.Entities;
+using Microsoft.AspNetCore.Mvc;
+
+namespace ElectronNET.WebApp.Controllers
+{
+    public class ShortcutsController : Controller
+    {
+        public IActionResult Index()
+        {
+            Electron.GlobalShortcut.Register("CommandOrControl+Alt+K", async () => {
+                var options = new MessageBoxOptions("You pressed the registered global shortcut keybinding.")
+                {
+                    Type = MessageBoxType.info,
+                    Title = "Success!"
+                };
+
+                await Electron.Dialog.ShowMessageBoxAsync(options);
+            });
+
+            Electron.App.WillQuit += () => Electron.GlobalShortcut.UnregisterAll();
+
+            return View();
+        }
+    }
+}