fix: add cjs file

package.json

@@ -2,7 +2,7 @@
 	"name": "@egjs/flicking",
 	"version": "4.10.7-snapshot",
 	"description": "Everyday 30 million people experience. It's reliable, flexible and extendable carousel.",
-	"main": "dist/flicking.js",
+	"main": "dist/flicking.cjs.js",
 	"module": "dist/flicking.esm.js",
 	"sideEffects": [
 		"**/*.css",

rollup.config.js

@@ -46,6 +46,12 @@ export default buildHelper([
     format: "esm",
     external,
     exports: "named"
+  },
+  {
+    input: "./src/index.cjs.ts",
+    output: "./dist/flicking.cjs.js",
+    format: "cjs",
+    exports: "named",
   }
 ]);
 

src/index.cjs.ts

@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2015 NAVER Corp.
+ * egjs projects are licensed under the MIT license
+ */
+import Flicking, * as modules from "./index";
+
+for (const name in modules) {
+  (Flicking as any)[name] = (modules as any)[name];
+}
+
+declare const module: any;
+module.exports = Flicking;
+export default Flicking;
+export * from "./index";