docs(getting-started): update stackablectl op install output, make it consistent with other operator docs (#733)

Author: NickLarsenNZ

docs/modules/kafka/examples/getting_started/install-operator-output.txt

@@ -0,0 +1,5 @@
+Installed commons=0.0.0-dev operator
+Installed secret=0.0.0-dev operator
+Installed listener=0.0.0-dev operator
+Installed zookeeper=0.0.0-dev operator
+Installed kafka=0.0.0-dev operator

docs/modules/kafka/examples/getting_started/install-operator-output.txt.j2

@@ -0,0 +1,5 @@
+Installed commons={{ versions.commons }} operator
+Installed secret={{ versions.secret }} operator
+Installed listener={{ versions.listener }} operator
+Installed zookeeper={{ versions.zookeeper }} operator
+Installed kafka={{ versions.kafka }} operator

docs/modules/kafka/examples/getting_started/install_output.txt

@@ -26,9 +26,7 @@ include::example$getting_started/getting_started.sh[tag=stackablectl-install-ope
 The tool will show
 
 [source]
-----
-include::example$getting_started/install-operator-output.txt[tag=stackablectl-install-operators-output]
-----
+include::example$getting_started/install_output.txt[]
 
 TIP: Consult the xref:management:stackablectl:quickstart.adoc[] to learn more about how to use `stackablectl`.