fix: upgrade multiple dependencies with Snyk

Snyk has created this PR to upgrade:
  - react from 18.2.0 to 18.3.1.
    See this package in npm: https://www.npmjs.com/package/react
  - react-dom from 18.2.0 to 18.3.1.
    See this package in npm: https://www.npmjs.com/package/react-dom

See this project in Snyk:
https://app.snyk.io/org/dannysto/project/1d9e5883-ebce-46f7-9683-ec124b6ead65?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -5,8 +5,8 @@
   "dependencies": {
     "@testing-library/jest-dom": "^6.4.2",
     "@testing-library/user-event": "^14.5.2",
-    "react": "^18.2.0",
-    "react-dom": "^18.2.0",
+    "react": "^18.3.1",
+    "react-dom": "^18.3.1",
     "react-scripts": "^5.0.1",
     "web-vitals": "^3.5.2"
   },