fix(contact): editorial email → editor@relevantmediaproperties.com

Per Ryan 2026-06-05. The avbeat-domain editor@ address routed to the
local AVB mailbox; RMP-wide editorial inbox is the canonical destination
going forward. Single href + display-text change on /about/contact.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/app/about/contact/page.tsx

@@ -8,7 +8,7 @@ const CONTACTS = [
   {
     title: "Editorial",
     body: (
-      <a className="text-[#7DD3FC] hover:underline" href="mailto:editor@avbeat.com">editor@avbeat.com</a>
+      <a className="text-[#7DD3FC] hover:underline" href="mailto:editor@relevantmediaproperties.com">editor@relevantmediaproperties.com</a>
     ),
     hint: "Story tips, corrections, interview requests.",
   },