fix(deps): update dependency next to v16 [security]

Author: renovate[bot]

package.json

@@ -24,7 +24,7 @@
     "clsx": "^2.1.1",
     "crisp-sdk-web": "^1.0.21",
     "lucide-react": "^0.476.0",
-    "next": "15.2.0",
+    "next": "16.0.0",
     "openai": "^4.79.1",
     "react": "^19",
     "react-dom": "^19",