Focus on browser when going fullscreen to shift keyboard focus (#29)

Author: mitchcapper

CefSharp.Wpf.HwndHost.Example/Handlers/DisplayHandler.cs

@@ -33,6 +33,7 @@ protected override void OnFullscreenModeChange(IWebBrowser chromiumWebBrowser, I
                         WindowState = WindowState.Maximized,
                         Content = webBrowser
                     };
+                    fullScreenWindow.Loaded += (_,_) => webBrowser.Focus();
 
                     fullScreenWindow.ShowDialog();
                 }