housekeeping(deps): redux-immutable v4

Author: renovate-bot

package-lock.json

@@ -75,7 +75,7 @@
     "react-motion": "^0.5.2",
     "react-redux": "^4.x.x",
     "redux": "^3.x.x",
-    "redux-immutable": "3.1.0",
+    "redux-immutable": "4.0.0",
     "remarkable": "^1.7.4",
     "reselect": "^2.5.4",
     "serialize-error": "^2.1.0",