Bump date-fns from 3.6.0 to 4.1.0 in /app

Bumps [date-fns](https://github.com/date-fns/date-fns) from 3.6.0 to 4.1.0.
- [Release notes](https://github.com/date-fns/date-fns/releases)
- [Changelog](https://github.com/date-fns/date-fns/blob/main/CHANGELOG.md)
- [Commits](date-fns/date-fns@v3.6.0...v4.1.0)

---
updated-dependencies:
- dependency-name: date-fns
  dependency-version: 4.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

app/package-lock.json

@@ -45,7 +45,7 @@
     "clsx": "^2.1.1",
     "cmdk": "^1.1.1",
     "d3": "^7.9.0",
-    "date-fns": "^3.6.0",
+    "date-fns": "^4.1.0",
     "embla-carousel-react": "^8.6.0",
     "input-otp": "^1.4.2",
     "lucide-react": "^0.462.0",