add eslint script

eslint.config.mjs

@@ -0,0 +1,13 @@
+import globals from "globals";
+import pluginJs from "@eslint/js";
+import tseslint from "typescript-eslint";
+import pluginReact from "eslint-plugin-react";
+
+
+export default [
+  {files: ["**/*.{js,mjs,cjs,ts,jsx,tsx}"]},
+  {languageOptions: { globals: globals.browser }},
+  pluginJs.configs.recommended,
+  ...tseslint.configs.recommended,
+  pluginReact.configs.flat.recommended,
+];