Added linting, changed to esm loading

eslint.config.js

@@ -0,0 +1,9 @@
+import globals from "globals";
+import pluginJs from "@eslint/js";
+
+
+/** @type {import('eslint').Linter.Config[]} */
+export default [
+  {languageOptions: { globals: globals.browser }},
+  pluginJs.configs.recommended,
+];