optimizing compilation

Author: wenlng

package.json

@@ -39,8 +39,8 @@
   "author": "Awen",
   "license": "MIT",
   "main": "index.js",
-  "types": "./lib/index.d.ts",
-  "typings": "./lib/index.d.ts",
+  "types": "./dist/index.d.ts",
+  "typings": "./dist/index.d.ts",
   "module": "dist/gocaptcha.cjs.js",
   "unpkg": "./dist/gocaptcha.global.js",
   "jsdelivr": "./dist/gocaptcha.global.js",