Add Vercel domain configuration for darkportal

domains/_vercel.darkportal.json

@@ -0,0 +1,9 @@
+{
+  "owner": {
+    "username": "DarkThief205",
+    "email": "ivopivo04@gmail.com"
+  },
+  "records": {
+    "TXT": ["vc-domain-verify=darkportal.is-a.dev,20c35a8e36dc936ab04b"]
+  }
+}