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 19.1.0
- [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/v19.1.0/packages/react)

Updates `@types/react` from 18.3.23 to 19.1.8
- [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: 19.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: "@types/react"
  dependency-version: 19.1.8
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -70,7 +70,7 @@
     "@types/fs-extra": "^11.0.4",
     "@types/jest": "^30.0.0",
     "@types/node": "^24.1.0",
-    "@types/react": "^18.3.23",
+    "@types/react": "^19.1.9",
     "@types/react-dom": "^18.3.7",
     "@types/react-helmet": "^6.1.11",
     "@types/react-lottie": "^1.2.10",
@@ -133,7 +133,7 @@
     "date-fns": "^4.1.0",
     "free-email-domains": "^1.2.20",
     "posthog-js": "^1.258.2",
-    "react": "^18.3.1",
+    "react": "^19.1.1",
     "react-cool-dimensions": "^3.0.1",
     "react-dom": "^18.3.1",
     "react-dropzone": "^14.3.8",