fix: publish types (#396)

Author: posva

package.json

@@ -5,13 +5,15 @@
   "license": "MIT",
   "repository": "terkelg/prompts",
   "main": "index.js",
+  "types": "index.d.ts",
   "author": {
     "name": "Terkel Gjervig",
     "email": "[email protected]",
     "url": "https://terkel.com"
   },
   "files": [
     "lib",
+    "index.d.ts",
     "index.js"
   ],
   "scripts": {