fix(package): update react-redux to version 6.0.1

Closes #302

package.json

@@ -88,7 +88,7 @@
     "react-i18next": "~9.0.1",
     "react-markdown": "~4.0.3",
     "react-player": "~1.8.0",
-    "react-redux": "~5.0.7",
+    "react-redux": "~6.0.1",
     "react-router": "~3.0.1",
     "react-select": "~1.2.1",
     "react-toggled": "^1.2.7",