fix the type link

Author: xr0master

package.json

@@ -10,8 +10,8 @@
   "homepage": "https://www.emailjs.com",
   "license": "BSD-3-Clause",
   "main": "cjs/index.js",
-  "types": "es/index.d.ts",
-  "module": "es/index.js",
+  "types": "mjs/index.d.ts",
+  "module": "mjs/index.js",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/emailjs-com/emailjs-nodejs.git"