fix: nextjs vuln (#111)

Signed-off-by: Pranav <pranav10121@gmail.com>

Author: npv12

frontend/package-lock.json

@@ -29,7 +29,7 @@
     "date-fns": "^4.1.0",
     "fuse.js": "^7.1.0",
     "lucide-react": "^0.544.0",
-    "next": "15.5.3",
+    "next": "15.5.7",
     "next-themes": "^0.4.6",
     "react": "19.1.1",
     "react-day-picker": "^9.7.0",
@@ -47,7 +47,7 @@
     "@types/react": "19.1.13",
     "@types/react-dom": "19.1.9",
     "eslint": "^9",
-    "eslint-config-next": "15.5.3",
+    "eslint-config-next": "15.5.7",
     "prettier": "^3.5.3",
     "tailwindcss": "^4",
     "tw-animate-css": "^1.3.0",