chore: bump react-dom and @types/react-dom (#3690)

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 19.0.0
- [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-dom)

Updates `@types/react-dom` from 18.3.0 to 19.0.0
- [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] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

examples/react-app/package.json

@@ -22,14 +22,14 @@
         "@wallet-standard/core": "^1.1.0",
         "@wallet-standard/react": "^1.0.0",
         "react": "^18.3.0",
-        "react-dom": "^18.3.0",
+        "react-dom": "^19.0.0",
         "react-error-boundary": "^4.1.2",
         "swr": "^2.2.5"
     },
     "devDependencies": {
         "@solana/wallet-standard-features": "^1.2.0",
         "@types/react": "^18.3",
-        "@types/react-dom": "^18.3",
+        "@types/react-dom": "^19.0",
         "@vitejs/plugin-react-swc": "^3.7.2",
         "eslint-plugin-react-refresh": "^0.4.16",
         "globals": "^15.13.0",