perf(portals): fast-fail requests to portal hosts that stopped answering (#1421)

libs/shared/interfaces/src/index.ts

@@ -14,6 +14,7 @@ export * from './lib/epg-program.model';
 export * from './lib/external-player-arguments.utils';
 export * from './lib/external-player-session.interface';
 export * from './lib/global-search-result.interface';
+export * from './lib/host-connectivity.util';
 export * from './lib/indexed-db.config';
 export * from './lib/ipc-command.class';
 export * from './lib/ipc-commands';