build(deps-dev): bump react-dom and @types/react-dom

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 19.2.3
- [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/v19.2.3/packages/react-dom)

Updates `@types/react-dom` from 18.3.7 to 19.2.3
- [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-version: 19.2.3
  dependency-type: direct:development
  update-type: version-update:semver-major
- dependency-name: "@types/react-dom"
  dependency-version: 19.2.3
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -54,7 +54,7 @@
     "@sumup-oss/icons": "^5.22.0",
     "@types/node": "^25.0.9",
     "@types/react": "^18.2.31",
-    "@types/react-dom": "^18.2.14",
+    "@types/react-dom": "^19.2.3",
     "@typescript-eslint/parser": "^8.52.0",
     "astro": "^5.16.11",
     "astro-mermaid": "1.2.0",
@@ -72,7 +72,7 @@
     "prettier-plugin-astro": "^0.14.1",
     "react": "^18.2.0",
     "react-content-loader": "^7.1.1",
-    "react-dom": "^18.2.0",
+    "react-dom": "^19.2.3",
     "react-final-form": "^7.0.0",
     "sass": "^1.97.1",
     "starlight-image-zoom": "^0.13.0",