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

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

Updates `react` 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)

Updates `@types/react` from 18.3.13 to 19.0.12
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/react)

---
updated-dependencies:
- dependency-name: react
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: "@types/react"
  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

@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "dependencies": {
-    "react": "^18.3.1",
+    "react": "^19.1.0",
     "react-dom": "^18.3.1",
     "vite": "^6.3.3",
     "web-vitals": "^4.2.4"
@@ -15,7 +15,7 @@
     "@vitejs/plugin-react": "^4.4.1",
     "@types/jest": "^29.5.14",
     "@types/node": "^22.15.3",
-    "@types/react": "^18.3.13",
+    "@types/react": "^19.1.2",
     "@types/react-dom": "^18.3.1",
     "jsdom": "^26.1.0",
     "vitest": "^3.1.2",