Fix path to types

Author: wojtekmaj

package.json

@@ -5,7 +5,7 @@
   "main": "dist/cjs/index.js",
   "module": "dist/esm/index.js",
   "source": "src/index.ts",
-  "types": "src/index.ts",
+  "types": "dist/cjs/index.d.ts",
   "sideEffects": false,
   "scripts": {
     "build": "yarn build-esm && yarn build-cjs",