Dependency (dependabot/npm): Bump react in /Website (#3649)

Bumps [react](https://github.com/react/react/tree/HEAD/packages/react) from 19.3.0 to 19.3.1.
- [Release notes](https://github.com/react/react/releases)
- [Changelog](https://github.com/react/react/blob/main/CHANGELOG.md)
- [Commits](https://github.com/react/react/commits/v19.3.1/packages/react)

---
updated-dependencies:
- dependency-name: react
  dependency-version: 19.3.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Website/package.json

@@ -23,7 +23,7 @@
     "@mdx-js/react": "^3.1.1",
     "clsx": "^2.0.0",
     "prism-react-renderer": "^2.4.1",
-    "react": "^19.3.0",
+    "react": "^19.3.1",
     "react-dom": "^19.3.0",
     "react-image-gallery": "^2.1.2"
   },

Website/yarn.lock

@@ -7770,10 +7770,10 @@ react-router@5.3.4, react-router@^5.3.4:
     tiny-invariant "^1.0.2"
     tiny-warning "^1.0.0"
 
-react@^19.3.0:
-  version "19.3.0"
-  resolved "https://registry.yarnpkg.com/react/-/react-19.3.0.tgz#e20aa3a14687075ce863351b5878b0608c3fbfb2"
-  integrity sha512-E8LUcbtBWt20bbl2YoHfx4ZDBdxVTfOKtCZn9cDSJ4l6/nuoApcpIBcj47t2wZoVX8g2ZHuMHbiShgCR1T5Sog==
+react@^19.3.1:
+  version "19.3.1"
+  resolved "https://registry.yarnpkg.com/react/-/react-19.3.1.tgz#26e9523fc36ea06be5050ebb780249a133260ad7"
+  integrity sha512-QNhWdt7nrgVWWQG58QuGsAR3jv3Hbe4mb4vz7w2csnHavciZJgda1CPNaldF6eVxv90ud3jUXpKlHL69gO38yw==
 
 readable-stream@^2.0.1:
   version "2.3.8"