chore(deps): bump react and @types/react in /templates/next-app

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 19.2.3 to 19.2.4
- [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/v19.2.4/packages/react)

Updates `@types/react` from 19.2.2 to 19.2.14
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/react)

---
updated-dependencies:
- dependency-name: react
  dependency-version: 19.2.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: "@types/react"
  dependency-version: 19.2.14
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

templates/next-app/package.json

@@ -21,7 +21,7 @@
     "@eslint/eslintrc": "^3",
     "@tailwindcss/postcss": "^4.1.18",
     "@types/node": "^25.1.0",
-    "@types/react": "^19.2.10",
+    "@types/react": "^19.2.14",
     "@types/react-dom": "^19.2.3",
     "eslint": "^9.39.2",
     "eslint-config-next": "16.1.6",