image-hosts: allow broadcastbeat.com + advertising.RMP

AV beat banners point at images on broadcastbeat.com and on
advertising.relevantmediaproperties.com. Without these in the Next.js
remotePatterns allowlist, /_next/image proxy returns 400 and the page
falls back to article-placeholder-v2.svg.

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

image-hosts.config.js

@@ -31,4 +31,16 @@ export const imageHosts = [
         protocol: 'https',
         hostname: 'www.avbeat.com',
     },
+    {
+        protocol: 'https',
+        hostname: 'broadcastbeat.com',
+    },
+    {
+        protocol: 'https',
+        hostname: 'www.broadcastbeat.com',
+    },
+    {
+        protocol: 'https',
+        hostname: 'advertising.relevantmediaproperties.com',
+    },
 ];