Add rumahzen.thedev.id (#532)

subdomains.json

@@ -156,6 +156,7 @@
   "rogerp": "rogerpanza.github.io",
   "rohmadkur": "rohmadkur.netlify.app",
   "roshan": "roshan1337d.github.io",
+  "rumahzen": "mzaini30.github.io/rumah-zen",
   "sazid": "palstheintrovert.github.io",
   "seimpairiyun": "seimpairiyun.github.io",
   "senhan07": "senhan07.github.io",
@@ -198,4 +199,4 @@
   "zh": "zh.github.io",
   "zuhaib": "powrhouseofthecell.github.io",
   "zvqle": "zvqlesrealm.vercel.app"
-}
+}