Sample that shows how to use the webview tag in an app to create a mini browser.
The app's main window contains a <webview> that is sized to fit most of it
(via the width and height attributes). The location bar is used to
update its src attribute.
<webview> is the preferred way for you to load web content into your app. It
runs in a separate process and has its own storage, ensuring the security and
reliability of your application.
