fix: output gauge once into packagesources before watching

to prevent errors if someone forgets to run build first

Author: pepperoni505

examples/gauge/package.json

@@ -5,7 +5,7 @@
   "main": "index.js",
   "scripts": {
     "build": "cross-env DEBUG=false npx rollup -c",
-    "dev": "cross-env DEBUG=true npx rollup -cw"
+    "dev": "cross-env DEBUG=false npx rollup -c && cross-env DEBUG=true npx rollup -cw"
   },
   "keywords": [],
   "author": "",