Update immutable-devtools to the latest version 🚀 (#1375)

* fix(package): update immutable-devtools to version 0.1.5

* chore(package): update lockfile package-lock.json

Author: greenkeeper[bot]

package-lock.json

@@ -49,7 +49,7 @@
     "graphql-playground-react": "1.7.20",
     "history": "4.10.1",
     "immutable": "4.0.0-rc.9",
-    "immutable-devtools": "0.1.3",
+    "immutable-devtools": "0.1.5",
     "js-beautify": "1.10.2",
     "json-file-plus": "3.2.0",
     "package-json": "6.5.0",