fix node version

Author: ThomasKranitsas

package-lock.json

@@ -56,7 +56,8 @@
     "react": "^16.8.6"
   },
   "engines": {
-    "node": ">=10.14.0"
+    "node": "^8.11.2",
+    "npm": "^5.6.0"
   },
   "dependencies": {
     "classnames": "^2.2.6",