TOC item rename and fix redirect

Author: AbbyMSFT

.openpublishing.redirection.azure-monitor.json

@@ -3787,14 +3787,9 @@
             "redirect_url": "/azure/azure-monitor/alerts/alerts-classic-portal",
             "redirect_document_id": false
         },
-        {
-            "source_path_from_root": "/articles/azure-monitor/platform/alerts-common-schema.md",
-            "redirect_url": "/azure/azure-monitor/alerts/alerts-common-schema",
-            "redirect_document_id": false
-        },
         {
             "source_path_from_root": "/articles/azure-monitor/platform/alerts-common-schema-definitions.md",
-            "redirect_url": "/azure/azure-monitor/alerts/alerts-common-schema-definitions",
+            "redirect_url": "/azure/azure-monitor/alerts/alerts-common-schema",
             "redirect_document_id": false
         },
         {

articles/azure-monitor/toc.yml

@@ -70,7 +70,7 @@ items:
         href: vm/monitor-virtual-machine-alerts.md
       - name: Migrate management pack logic
         href: vm/monitor-virtual-machine-management-packs.md
-  - name: Self-monitoring
+  - name: Monitor Azure Monitor
     href: monitor-azure-monitor.md 
 - name: Samples
   items:
@@ -940,7 +940,6 @@ items:
         href: app/sharepoint.md
       - name: Windows desktop
         href: app/windows-desktop.md
- 
   - name: Container insights
     items:
     - name: Overview