build(deps): bump next from 15.5.9 to 16.1.5

Bumps [next](https://github.com/vercel/next.js) from 15.5.9 to 16.1.5.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.5.9...v16.1.5)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 16.1.5
  dependency-type: direct:production
...

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

Author: dependabot[bot]

package.json

@@ -43,7 +43,7 @@
     "clsx": "^2.1.1",
     "lucide-react": "^0.552.0",
     "nanoid": "^5.1.5",
-    "next": "15.5.9",
+    "next": "16.1.5",
     "next-themes": "^0.4.6",
     "pg": "^8.16.3",
     "qr-code-styling": "^1.9.2",