After discussions with team,

remove the rba_upgrade_tracking.json
file and update the default.xml
file to avoid conflict around
multiple definitions of this file.

Author: pyth0n1c

app_template/default/data/ui/nav/default.xml

@@ -1,9 +1,10 @@
 <nav search_view="search" color="#65A637">
-  <view name="escu_summary" default="true"/>
-  <view name="feedback"/>
+  <view name="landing" default="true"/>
+  <view name="onboarding"/>
   <view name="search"/>
   <collection label="Dashboards">
     <view source="unclassified" match="__"/>
   </collection>
   <a href="https://help.splunk.com/en/splunk-enterprise-security-8/security-content-update">Docs</a>
+  <a href="/app/SplunkEnterpriseSecuritySuite/ess_use_case_library">Explore in ES</a>
 </nav>