Add internal dns beta ui screenshot

Author: hannesb0

src/assets/images/dns/internal-dns-beta-ui.png

@@ -20,6 +20,6 @@ Participating beta testers can now fully configure Internal DNS directly in the
 
 - Beta participants can now create and manage internal zones and views in the Cloudflare dashboard
 
-![Internal DNS UI](~/assets/images/changelog/dns/internal-dns-ui.png)
+![Internal DNS UI](~/assets/images/changelog/dns/internal-dns-beta-ui.png)
 
 To learn more and get started, refer to the [Internal DNS documentation](/dns/internal-dns/).