OSDOCS-15162 [NETOBSERV] Rename file that is concept module

Author: gwynnemonahan

modules/network-observability-overview.adoc renamed to modules/network-observability-con_network-traffic-overview-view.adoc

@@ -9,7 +9,7 @@ toc::[]
 As an administrator, you can observe the network traffic in the {product-title} console for detailed troubleshooting and analysis. This feature helps you get insights from different graphical representations of traffic flow. There are several available views to observe the network traffic.
 
 //Overview
-include::modules/network-observability-overview.adoc[leveloffset=+1]
+include::modules/network-observability-con_network-traffic-overview-view.adoc[leveloffset=+1]
 include::modules/network-observability-working-with-overview.adoc[leveloffset=+2]
 include::modules/network-observability-configuring-options-overview.adoc[leveloffset=+2]
 include::modules/network-observability-pktdrop-overview.adoc[leveloffset=+2]