Bump react-dom and @types/react-dom in /app-frontend

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 18.3.1 to 19.1.0
- [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/v19.1.0/packages/react-dom)

Updates `@types/react-dom` from 18.3.1 to 19.0.4
- [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-major
- dependency-name: "@types/react-dom"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

app-frontend/package-lock.json

@@ -4,7 +4,7 @@
   "private": true,
   "dependencies": {
     "react": "^18.3.1",
-    "react-dom": "^18.3.1",
+    "react-dom": "^19.1.0",
     "vite": "^6.2.5",
     "web-vitals": "^4.2.4"
   },
@@ -16,7 +16,7 @@
     "@types/jest": "^29.5.14",
     "@types/node": "^22.14.0",
     "@types/react": "^18.3.13",
-    "@types/react-dom": "^18.3.1",
+    "@types/react-dom": "^19.1.1",
     "jsdom": "^26.0.0",
     "vitest": "^3.0.9",
     "typescript": "^5.8.3"