Added ESLint

eslint.config.mjs

@@ -0,0 +1,8 @@
+import globals from "globals";
+import pluginJs from "@eslint/js";
+
+export default [
+    {files: ["**/*.js"], languageOptions: {sourceType: "commonjs"}},
+    {languageOptions: {globals: globals.browser}},
+    pluginJs.configs.recommended,
+];