build(deps): bump react-dom from 18.3.1 to 19.1.0 in /apps/OpenSign

Bumps [react-dom](https://github.com/facebook/react/tree/HEAD/packages/react-dom) 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-dom)

---
updated-dependencies:
- dependency-name: react-dom
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

apps/OpenSign/package-lock.json

@@ -33,7 +33,7 @@
     "react-dnd-html5-backend": "^16.0.1",
     "react-dnd-multi-backend": "^9.0.0",
     "react-dnd-touch-backend": "^16.0.1",
-    "react-dom": "^18.2.0",
+    "react-dom": "^19.1.0",
     "react-gtm-module": "^2.0.11",
     "react-helmet": "^6.1.0",
     "react-i18next": "^15.4.1",