Bump prettier from 2.3.2 to 2.4.0 (#304)

Bumps [prettier](https://github.com/prettier/prettier) from 2.3.2 to 2.4.0.
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/main/CHANGELOG.md)
- [Commits](https://github.com/prettier/prettier/compare/2.3.2...2.4.0)

---
updated-dependencies:
- dependency-name: prettier
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

web/package.json

@@ -49,7 +49,7 @@
     "eslint-plugin-prettier": "^4.0.0",
     "eslint-plugin-react": "^7.25.0",
     "eslint-plugin-react-hooks": "^4.2.0",
-    "prettier": "^2.3.2",
+    "prettier": "^2.4.0",
     "typescript": "^4.4.2"
   }
 }