Sync preview directory to dist

Author: derekrushforth

package.json

@@ -53,9 +53,10 @@
   },
   "scripts": {
     "start:dev": "watch 'npm run build' './src'",
-    "build": "npm run clean && npm run ts && npm run permissions",
+    "build": "npm run clean && npm run ts && npm run syncPreview && npm run permissions",
     "test": "npm run lint && npm run build && node_modules/mocha/bin/mocha --timeout 10000 --retries 1 -r ts-node/register test/**/*test.ts",
     "clean": "rm -r -f ./dist",
+    "syncPreview": "cp -R ./preview ./dist/preview",
     "ts": "node_modules/.bin/tsc",
     "permissions": "chmod +x ./dist/index.js",
     "lint": "eslint --ext .ts ./src",