topic rename

Author: JnHs

articles/lighthouse/concepts/azure-lighthouse-managed-applications.md renamed to articles/lighthouse/concepts/managed-applications.md

@@ -35,7 +35,7 @@
     href: ./concepts/enterprise.md
   - name: Azure Lighthouse and Azure managed applications 
     displayName: managed apps, ama
-    href: ./concepts/azure-lighthouse-managed-applications.md
+    href: ./concepts/managed-applications.md
 - name: How-to guides
   items:
   - name: Onboard a customer to Azure delegated resource management