upgrade node packages (gitbub security alerted some)

Author: exrhizo

package.json

@@ -18,7 +18,7 @@
     "react-dom": "^16.8.6",
     "react-final-form": "^6.3.0",
     "react-redux": "^7.1.0",
-    "react-scripts": "3.0.1",
+    "react-scripts": "3.4.1",
     "recordrtc": "^5.5.8",
     "redux": "^4.0.1",
     "redux-first-history": "^4.0.4",