title: disable webview zoom in App Inventor
body: <p>When I create an app with <strong>App Inventor</strong> and I add a <code>webviewer</code> component, it appears an annoying icon to zoom.
  Wonder how can I disable this icon. </p>
  
  <p>If there isn't a specific function implemented in App Inventor, please tell me which part of the java code I have to modify.
  Thanks</p>