chore: eslint config package fixes (#2165)

* eslint fixes

* lint rules added

packages/eslint-config-custom/index.js

@@ -16,5 +16,7 @@ module.exports = {
     "no-duplicate-imports": "error",
     "arrow-body-style": ["error", "as-needed"],
     "react/self-closing-comp": ["error", { component: true, html: true }],
+    "@next/next/no-img-element": "off",
+    "@typescript-eslint/no-unused-vars": ["warn"],
   },
 };