Add devbox.thedev.id (#408)

Devbox is portfolio for myself to showcase project and article

subdomains.json

@@ -48,6 +48,7 @@
   "demonkingswarn": "glitch.edgeapp.net",
   "dendydharmawan": "dendydharmawan.vercel.app",
   "descendo": "hayden-droid.github.io",
+  "devbox": "devbox-nu.vercel.app/",
   "devinesia": "devinesia.github.io",
   "dontkill": "dontkill.github.io",
   "drmonocle": "monocledr.github.io",