chore: Replace deprecated next lint command with eslint directly

Author: torokati44

package.json

@@ -6,7 +6,7 @@
     "dev": "next dev",
     "build": "next build",
     "start": "next start",
-    "lint": "next lint"
+    "lint": "eslint"
   },
   "dependencies": {
     "@mantine/charts": "^8.3.5",