Bump react-dom and @types/react-dom in /app/frontend (#1734)

Bumps [react-dom](https://github.com/facebook/react/tree/HEAD/packages/react-dom) and [@types/react-dom](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/react-dom). These dependencies needed to be updated together.

Updates `react-dom` from 18.2.0 to 18.3.1
- [Release notes](https://github.com/facebook/react/releases)
- [Changelog](https://github.com/facebook/react/blob/main/CHANGELOG.md)
- [Commits](https://github.com/facebook/react/commits/v18.3.1/packages/react-dom)

Updates `@types/react-dom` from 18.2.14 to 18.3.0
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/react-dom)

---
updated-dependencies:
- dependency-name: react-dom
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: "@types/react-dom"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Pamela Fox <[email protected]>

Author: dependabot[bot]

app/frontend/package-lock.json

@@ -21,7 +21,7 @@
     "marked": "^13.0.0",
     "dompurify": "^3.0.6",
     "react": "^18.3.1",
-    "react-dom": "^18.2.0",
+    "react-dom": "^18.3.1",
     "react-router-dom": "^6.23.1",
     "ndjson-readablestream": "^1.2.0",
     "react-syntax-highlighter": "^15.5.0",
@@ -30,7 +30,7 @@
   "devDependencies": {
     "@types/dompurify": "^3.0.4",
     "@types/react": "^18.3.3",
-    "@types/react-dom": "^18.2.14",
+    "@types/react-dom": "^18.3.0",
     "@vitejs/plugin-react": "^4.1.1",
     "prettier": "^3.0.3",
     "typescript": "^5.4.5",