Use "@typescript-eslint/no-unused-vars": "error"

This rule extends the base eslint/no-unused-vars rule. It adds support for TypeScript features, such as types. This commit also updates some library versions

.eslintrc.json

@@ -1,13 +1,14 @@
 {
   "extends": ["next", "next/core-web-vitals", "plugin:prettier/recommended"],
-  "plugins": ["prettier"],
+  "plugins": ["prettier", "@typescript-eslint"],
   "rules": {
     "prettier/prettier": [
       "error",
       {
         "endOfLine": "auto"
       }
     ],
-    "no-unused-vars": "error"
+    "no-unused-vars": "off",
+    "@typescript-eslint/no-unused-vars": "error"
   }
 }