UpdateFeed now immediately starts sending

prevent deletion of .gitignore while generating production
build of fronmtend

frontend/public/.gitignore

@@ -0,0 +1,2 @@
+*
+!.gitignore

src/main/java/io/dietz/ed/companion/service/UpdateFeedsService.java

@@ -58,7 +58,7 @@ public class UpdateFeedsService {
     }
 
     private <T> Flux<ServerSentEvent<T>> wrap(Flux<ServerSentEvent<T>> fluxToWrap) {
-        return Flux.merge(fluxToWrap, Flux.interval(Duration.ofSeconds(15)).map(aLong -> ServerSentEvent.<T>builder().comment("keep alive").build()));
+        return Flux.merge(fluxToWrap, Flux.interval(Duration.ofSeconds(0), Duration.ofSeconds(15)).map(aLong -> ServerSentEvent.<T>builder().comment("keep alive").build()));
     }
 
     private void storeActiveFeedHandler(String feedId, MessageHandler handler) {