Split Vercel verification into separate file

domains/_vercel.herlen.json

@@ -0,0 +1,12 @@
+{
+  "owner": {
+    "username": "jebastinherlen",
+    "email": "herlenjebastin@gmail.com"
+  },
+  "records": {
+    "TXT": [
+      "vc-domain-verify=herlen.is-a.dev,b4c2bc2e350922ee4a8a",
+      "vc-domain-verify=www.herlen.is-a.dev,92d2f9d6ca214884fd6a"
+    ]
+  }
+}

domains/herlen.json

@@ -4,10 +4,6 @@
     "email": "herlenjebastin@gmail.com"
   },
   "records": {
-    "CNAME": "herlen-portfolio.vercel.app",
-    "TXT": [
-      "vc-domain-verify=herlen.is-a.dev,b4c2bc2e350922ee4a8a",
-      "vc-domain-verify=www.herlen.is-a.dev,92d2f9d6ca214884fd6a"
-    ]
+    "CNAME": "herlen-portfolio.vercel.app"
   }
 }