old_contents: 
  import 'file-loader?name=[name].[ext]!./focus';
  import Vue from 'vue'
  import Search from './Search.vue'
  import './icon.vue'
  
  if(window.focused)
  new Vue({
    el: '#app',
    render: h => h(Search)
  });
  
  
new_contents: 
  import 'file-loader?name=[name].[ext]!./content';
  import Vue from 'vue'
  import Search from './Search.vue'
  import './icon.vue'
  import './focus'
  
  if(window.focused)
  new Vue({
    el: '#app',
    render: h => h(Search)
  });
  
  
subject: build changes