text: import React, { Component } from 'react'
  import { Panel } from '@extjs/ext-react';
  
  // Enable responsiveConfig app-wide. You can remove this if you don't plan to build a responsive UI.
  Ext.require('Ext.plugin.Responsive');
  
  /**
   * The main application view
   */
  export default function App() {
  
      return (
          <Panel title="<%= appName %>" fullscreen>
              Hello World!
          </Panel>
      )
      
  }
  