chore: add jsdom to dev deps

Author: kentcdodds

package.json

@@ -46,6 +46,7 @@
     "jest-in-case": "^1.0.2",
     "jest-serializer-ansi": "^1.0.3",
     "jest-watch-select-projects": "^2.0.0",
+    "jsdom": "^16.2.2",
     "kcd-scripts": "^6.0.0"
   },
   "eslintConfig": {