fix: copy options json file over during build

when publishing, then options.json file is not copied into the dist directory causing anything using the release candidate to fail

Author: ScriptedAlchemy

package.json

@@ -17,7 +17,7 @@
     "lint:js": "eslint --cache src test",
     "lint": "npm-run-all -l -p \"lint:**\"",
     "prepare": "npm run build",
-    "build": "del dist && babel src -d dist",
+    "build": "del dist && babel src -d dist && cd src; cp options.json ../dist",
     "release": "standard-version",
     "security": "npm audit",
     "test:only": "cross-env NODE_ENV=test jest",