fix: upgrade multiple dependencies with Snyk

Snyk has created this PR to upgrade:
  - react from 16.13.1 to 16.14.0.
    See this package in npm: https://www.npmjs.com/package/react
  - react-dom from 16.13.1 to 16.14.0.
    See this package in npm: https://www.npmjs.com/package/react-dom

See this project in Snyk:
https://app.snyk.io/org/wambugucoder/project/239fdf17-72a9-4c3a-bb51-5d70801ea9b2?utm_source=github&utm_medium=upgrade-pr

Author: snyk-bot

client/package-lock.json

@@ -7,8 +7,8 @@
     "@testing-library/react": "^9.5.0",
     "@testing-library/user-event": "^7.2.1",
     "axios": "^0.20.0",
-    "react": "^16.13.1",
-    "react-dom": "^16.13.1",
+    "react": "^16.14.0",
+    "react-dom": "^16.14.0",
     "react-google-button": "^0.7.1",
     "react-google-login": "^5.1.20",
     "react-redux": "^7.2.1",