fix: bundle before publishing (#113)

Author: ojeytonwilliams

package.json

@@ -61,7 +61,7 @@
     "build": "NODE_ENV=production webpack",
     "lint": "eslint lib --max-warnings 0 && prettier lib --check",
     "test": "jest",
-    "prepublishOnly": "tsc"
+    "prepublishOnly": "npm run build"
   },
   "repository": "git@github.com:freeCodeCamp/curriculum-helpers.git",
   "jest": {