code: function (type, config) {
      // fail if we don't have a default for frost-page-title in the config
      if (!config.APP || !config.APP['frost-page-title'].defaultTitle) {
        return
      }
  
      // insert default page title
      if (type === 'page-title') {
        return config.APP['frost-page-title'].defaultTitle
      }
    }
docs: sets the default page title on build
  @param {string} type - type of content in which to be included
  @param {object} config - the app config object
  @returns {string|undefined} - string for content