add eslint recommended

Author: quesurifn

.eslintrc.js

@@ -3,6 +3,10 @@ module.exports = {
     browser: true,
     es2020: true,
   },
+  parserOptions: {
+    ecmaVersion: 11,
+    sourceType: 'module',
+  },
   extends: ['eslint:recommended', 'plugin:prettier/recommended'],
   rules: {},
-}
+};