Bump react-router from 7.4.0 to 7.5.2 in /themes/user/app

Bumps [react-router](https://github.com/remix-run/react-router/tree/HEAD/packages/react-router) from 7.4.0 to 7.5.2.
- [Release notes](https://github.com/remix-run/react-router/releases)
- [Changelog](https://github.com/remix-run/react-router/blob/main/packages/react-router/CHANGELOG.md)
- [Commits](https://github.com/remix-run/react-router/commits/react-router@7.5.2/packages/react-router)

---
updated-dependencies:
- dependency-name: react-router
  dependency-version: 7.5.2
  dependency-type: direct:production
...

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

Author: dependabot[bot]

themes/user/app/package.json

@@ -12,7 +12,7 @@
   "dependencies": {
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
-    "react-router": "^7.4.0",
+    "react-router": "^7.5.2",
     "zod": "^3.24.2"
   },
   "devDependencies": {