Add type packages for react.

Author: ghengeveld

Diff for: package.json

@@ -54,6 +54,8 @@
     "@storybook/react": "5.2.6",
     "@testing-library/jest-dom": "4.2.4",
     "@testing-library/react": "9.3.2",
+    "@types/react": "16.9.13",
+    "@types/react-dom": "16.9.4",
     "@typescript-eslint/eslint-plugin": "2.8.0",
     "@typescript-eslint/parser": "2.8.0",
     "babel-eslint": "10.0.3",