add eslint

package.json

@@ -3,14 +3,19 @@
   "version": "1.0.0",
   "main": "handball.js",
   "scripts": {
+    "start": "node index.js",
+    "lint": "eslint .",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "author": "",
   "license": "ISC",
   "description": "",
   "devDependencies": {
+    "@eslint/js": "^9.6.0",
     "autoprefixer": "^10.4.19",
     "cheerio": "^1.0.0-rc.12",
+    "eslint": "^9.6.0",
+    "globals": "^15.8.0",
     "postcss": "^8.4.39",
     "tailwindcss": "^3.4.4"
   }