fix: modify exports field in package.json

Author: jaywcjlove

package.json

@@ -9,8 +9,8 @@
   "author": "kenny wang <[email protected]>",
   "license": "MIT",
 	"type": "module",
-	"exports": "./index.js",
-	"types": "./index.d.ts",
+	"exports": "./lib/index.js",
+	"types": "./lib/index.d.ts",
   "scripts": {
     "start": "node lib/index.js",
     "watch": "tsbb watch --disable-babel",