Upgraded final-form dep to v4.0.4

Author: erikras

package.json

@@ -40,7 +40,7 @@
     "eslint-plugin-import": "^2.8.0",
     "eslint-plugin-jsx-a11y": "^6.0.3",
     "eslint-plugin-react": "^7.5.1",
-    "final-form": "^4.0.3",
+    "final-form": "^4.0.4",
     "flow": "^0.2.3",
     "flow-bin": "^0.61.0",
     "husky": "^0.14.3",