Bump postcss and react-scripts in /client

Bumps [postcss](https://github.com/postcss/postcss) to 8.4.31 and updates ancestor dependency [react-scripts](https://github.com/facebook/create-react-app/tree/HEAD/packages/react-scripts). These dependencies need to be updated together.


Updates `postcss` from 7.0.36 to 8.4.31
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](https://github.com/postcss/postcss/compare/7.0.36...8.4.31)

Updates `react-scripts` from 4.0.3 to 5.0.1
- [Release notes](https://github.com/facebook/create-react-app/releases)
- [Changelog](https://github.com/facebook/create-react-app/blob/main/CHANGELOG-4.x.md)
- [Commits](https://github.com/facebook/create-react-app/commits/react-scripts@5.0.1/packages/react-scripts)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: indirect
- dependency-name: react-scripts
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

client/package.json

@@ -13,7 +13,7 @@
     "react-redux": "^7.2.6",
     "react-router-dom": "^5.2.0",
     "react-router-redux": "^4.0.8",
-    "react-scripts": "4.0.3",
+    "react-scripts": "5.0.1",
     "react-spring": "^8.0.27",
     "redux": "^4.1.2",
     "redux-form": "^8.3.8",

package.json

@@ -31,11 +31,11 @@
     },
     "author": "",
     "dependencies": {
-        "body-parser": "^1.20.1",
+        "body-parser": "^1.19.0",
         "compression": "^1.7.4",
         "cors": "^2.8.5",
         "dotenv": "^10.0.0",
-        "express": "^4.18.2",
+        "express": "^4.17.1",
         "express-http-to-https": "^1.1.4",
         "express-jwt": "^6.1.0",
         "hsts": "^2.2.0",
@@ -62,7 +62,7 @@
         "eslint-plugin-react": "^7.27.1",
         "jest": "^26.6.0",
         "mongodb-memory-server": "^6",
-        "nodemon": "^2.0.15",
+        "nodemon": "^2.0.20",
         "prettier-eslint": "^13.0.0",
         "supertest": "^6.1.6"
     },