Add a New Widget Identifier
Add your widget identifier to the JavaScript object defined in src/applications/static-pages/widgetTypes.js. This file contains a list of all widget identifiers.
Follow the convention by adding your new entry in alphabetical order:
HELLO_WORLD: "hello-world",
This value will be used by the widget’s “create” function to search for a <div> with a data-widget-type attribute value of hello-world, e.g.: <div data-widget-type="hello-world"/>