chore: Unify spelling for listener, secret and commons operator

Author: Techassi

modules/ROOT/partials/release-notes/release-25.7.adoc

@@ -94,20 +94,17 @@ See https://github.com/stackabletech/issues/issues/748[issues#748].
   This was causing errors in kerberized environments previously.
   See https://github.com/stackabletech/docker-images/pull/1212[docker-images#1212] for details.
 
-// TODO (@Techassi): Define a single way of spelling internal operators, like listener, secret, and commons.
-// Currently, throughout this page variations like Stackable Listener Operator, Listener Operator, listener operator,
-// listener-operator are used. Only ONE must be used.
-===== Stackable listener operator
+===== Stackable listener-operator
 
-The Stackable Listener Operator can now use custom xref:listener-operator:listenerclass.adoc#servicetype-loadbalancer-class[LoadBalancer classes] and https://kubernetes.io/docs/concepts/services-networking/service/#load-balancer-nodeport-allocation[disable NodePort allocation].
+The Stackable listener-operator can now use custom xref:listener-operator:listenerclass.adoc#servicetype-loadbalancer-class[LoadBalancer classes] and https://kubernetes.io/docs/concepts/services-networking/service/#load-balancer-nodeport-allocation[disable NodePort allocation].
 
 ==== Platform improvements
 
 ===== General
 
 ====== Listener integration
 
-*Breaking:* The Stackable operators for Apache Airflow, Apache Druid, Apache HBase, Apache Hadoop, Apache Hive, Apache NiFi, Apache Spark, Apache ZooKeeper, and Trino are now integrated with the Stackable listener operator.
+*Breaking:* The Stackable operators for Apache Airflow, Apache Druid, Apache HBase, Apache Hadoop, Apache Hive, Apache NiFi, Apache Spark, Apache ZooKeeper, and Trino are now integrated with the Stackable listener-operator.
 See the overall tracking issue https://github.com/stackabletech/issues/issues/692[issues#692] and https://github.com/stackabletech/issues/issues/692#issuecomment-3068662411[comment] summarizing the breaking changes.
 
 * *Apache Airflow and Apache Superset:*