fix: remove module entry in package.json to revert 1.10.1 change (#1314)

Author: iamkun

package.json

@@ -4,7 +4,6 @@
   "description": "2KB immutable date time library alternative to Moment.js with the same modern API ",
   "main": "dayjs.min.js",
   "types": "index.d.ts",
-  "module": "esm/index.js",
   "scripts": {
     "test": "TZ=Pacific/Auckland npm run test-tz && TZ=Europe/London npm run test-tz && TZ=America/Whitehorse npm run test-tz && npm run test-tz && jest",
     "test-tz": "date && jest test/timezone.test --coverage=false",