Update react and create-react-app.

package.json

@@ -10,7 +10,7 @@
     "localforage": "^1.7.3",
     "moment": "^2.24.0",
     "node-rsa": "^1.0.3",
-    "react": "^16.5.2",
+    "react": "^16.9.0",
     "react-big-calendar": "^0.20.3",
     "react-datetime": "^2.16.3",
     "react-dom": "^16.4.0",
@@ -18,7 +18,7 @@
     "react-redux": "^5.0.6",
     "react-router": "^4.3.1",
     "react-router-dom": "^4.3.1",
-    "react-scripts": "^2.1.5",
+    "react-scripts": "3.1.1",
     "recompose": "^0.30.0",
     "redux": "^4.0.1",
     "redux-actions": "^2.6.4",