Bump react and @types/react in /docs/landing-page

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 19.2.0
- [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/v19.2.0/packages/react)

Updates `@types/react` from 18.3.11 to 19.2.3
- [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: 19.2.0
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: "@types/react"
  dependency-version: 19.2.3
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

docs/landing-page/package-lock.json

@@ -27,7 +27,7 @@
     "i18next-browser-languagedetector": "^8.2.0",
     "i18next-http-backend": "^2.6.2",
     "lucide-react": "^0.553.0",
-    "react": "^18.3.1",
+    "react": "^19.2.0",
     "react-dom": "^18.3.1",
     "react-i18next": "^15.1.0",
     "tailwind-merge": "^2.5.4",
@@ -46,7 +46,7 @@
     "@storybook/react-vite": "^8.3.6",
     "@storybook/test": "^8.6.14",
     "@types/node": "^22.7.7",
-    "@types/react": "^18.3.10",
+    "@types/react": "^19.2.3",
     "@types/react-dom": "^18.3.0",
     "@vitejs/plugin-react": "^5.1.1",
     "autoprefixer": "^10.4.22",