Update react-router to the latest version 🚀 (#1303)

* fix(package): update react-router to version 5.1.0

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

Author: greenkeeper[bot]

package-lock.json

@@ -65,7 +65,7 @@
     "react-dom": "16.9.0",
     "react-helmet": "5.2.1",
     "react-redux": "5.1.1",
-    "react-router": "5.0.1",
+    "react-router": "5.1.0",
     "react-router-dom": "5.0.1",
     "regenerator-runtime": "^0.13.3",
     "semver": "^6.3.0"