chore: re-ordering navigation menu (#940)

Author: octonato

docs/src/modules/java/nav.adoc

@@ -6,10 +6,10 @@
 *** xref:java:value-entity.adoc[Implementing Value Entities]
 *** xref:java:eventsourced.adoc[Implementing Event Sourced Entities]
 *** xref:java:replicated-entity.adoc[Implementing Replicated Entities]
+*** xref:java:views.adoc[Implementing Views]
 *** xref:java:actions.adoc[Implementing Actions]
 *** xref:java:actions-as-controller.adoc[Actions as Controllers]
 *** xref:java:actions-publishing-subscribing.adoc[Publishing and Subscribing]
-*** xref:java:views.adoc[Implementing Views]
 *** xref:java:side-effects.adoc[Running Side Effects]
 *** xref:java:serialization.adoc[Handling Serialization]
 *** xref:call-another-service.adoc[Calling other services]