Revert output filenames

Author: zerodevx

vite.dist.config.js

@@ -18,7 +18,7 @@ export default defineConfig({
     lib: {
       entry: './src/lib/index.js',
       name: 'window',
-      fileName: (format) => `index.${format === 'umd' ? 'umd.cjs' : 'es.js'}`
+      fileName: (format) => `index.${format}.js`
     },
     rollupOptions: {
       output: {