fix: exports types

Author: sxzz

package.json

@@ -12,6 +12,7 @@
   "types": "./dist/index.d.ts",
   "exports": {
     ".": {
+      "types": "./dist/index.d.ts",
       "import": "./dist/index.mjs",
       "require": "./dist/index.cjs"
     }