fix: local kafka setup

Author: Angular2Guy

backend/src/main/resources/application-kafka.properties

@@ -1,5 +1,5 @@
-kafka.server.name=${KAFKA_SERVER_NAME:kafkaapp}
-spring.kafka.bootstrap-servers=192.168.49.2:9092
+kafka.server.name=${KAFKA_SERVER_NAME:localhost}
+spring.kafka.bootstrap-servers=localhost:9092
 spring.kafka.producer.compression-type=gzip
 spring.kafka.producer.transaction-id-prefix: tx-
 spring.kafka.producer.key-serializer=org.apache.kafka.common.serialization.StringSerializer