chore(deps): bump react and @types/react

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 19.0.0
- [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/v19.0.0/packages/react)

Updates `@types/react` from 18.3.12 to 19.0.7
- [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>

apps/website/package.json

@@ -29,7 +29,7 @@
     "docusaurus-plugin-matomo": "^0.0.8",
     "gray-matter": "^4.0.3",
     "prism-react-renderer": "^2.4.1",
-    "react": "^18.3.1",
+    "react": "^19.0.0",
     "react-dom": "^18.3.1",
     "rehype-katex": "^7.0.1",
     "remark-math": "^6.0.0"
@@ -39,7 +39,7 @@
     "@docusaurus/tsconfig": "^3.7.0",
     "@docusaurus/types": "^3.7.0",
     "@types/node": "^22.10.7",
-    "@types/react": "^18.3.12",
+    "@types/react": "^19.0.7",
     "ts-node": "^10.9.2",
     "typescript": "^5.7.3"
   },