phase text improvement

kafka-ui-api/src/main/java/com/provectus/kafka/ui/emitter/RangePollingEmitter.java

@@ -72,8 +72,9 @@ abstract class RangePollingEmitter extends AbstractEmitter {
                                                   FluxSink<TopicMessageEventDTO> sink,
                                                   TreeMap<TopicPartition, FromToOffset> range) {
     log.trace("Polling range {}", range);
+    sendPhase(sink,
+        "Polling partitions: %s".formatted(range.keySet().stream().map(TopicPartition::partition).sorted().toList()));
 
-    sendPhase(sink, String.format("Polling partitions: %s", range.keySet()));
     consumer.assign(range.keySet());
     range.forEach((tp, fromTo) -> consumer.seek(tp, fromTo.from));