feat(external-gateway): add gateway client domain and DNS record support for dcrouter integration

ts_web/elements/ob-view-network.ts

@@ -20,6 +20,8 @@ export class ObViewNetwork extends DeesElement {
     trafficStats: null,
     dnsRecords: [],
     domains: [],
+    gatewayDomains: [],
+    gatewayDnsRecords: [],
     certificates: [],
   };