message: docs: update marketing resources.json with ExtAngular
  PR Close
diff: "title": "Angular UI Toolkit",
  "url": "https://www.angular-ui-tools.com"
  },
  + "SenchaforAngular": {
  + "desc": "Build modern web apps faster with 115+ pre-built UI components. Try for free and download today.",
  + "rev": true,
  + "title": "Sencha for Angular",
  + "url": "https://www.sencha.com/products/extangular/"
  + },
  "IgniteUIforAngular": {
  "desc": "Ignite UI for Angular is a dependency-free Angular toolkit for building modern web apps.",
  "rev": true,
  