chore: export typescript types (#114)

Author: vwong

package.json

@@ -9,8 +9,9 @@
   ],
   "exports": {
     ".": {
+      "default": "./dist/index.js",
       "import": "./dist/index.mjs",
-      "default": "./dist/index.js"
+      "types": "./dist/src/index.d.ts"
     }
   },
   "scripts": {