[v11.0.x] Docs: What’s new & Upgrade guide & Breaking changes v11.0 (#87720)

Docs: What’s new & Upgrade guide & Breaking changes v11.0 (#86369)

* Updated g11-preview pags for g11 release

* Added items to breaking changes guide

* Added and updated What's new content from latest Cloud file

* Updated link text

* Removed Azure Monitor item

(cherry picked from commit c2e8384090)

Co-authored-by: Isabel Matwawana <76437239+imatwawana@users.noreply.github.com>

docs/sources/upgrade-guide/upgrade-v11.0/index.md

@@ -1,5 +1,5 @@
 ---
-description: Guide for upgrading to Grafana v11.0-preview
+description: Guide for upgrading to Grafana v11.0
 keywords:
   - grafana
   - configuration
@@ -7,12 +7,12 @@ keywords:
   - upgrade
   - '11.0'
   - '11.0-preview'
-title: Upgrade to Grafana v11.0-preview
-menuTitle: Upgrade to v11.0-preview
+title: Upgrade to Grafana v11.0
+menuTitle: Upgrade to v11.0
 weight: 1200
 ---
 
-# Upgrade to Grafana v11.0-preview
+# Upgrade to Grafana v11.0
 
 {{< docs/shared lookup="upgrade/intro.md" source="grafana" version="<GRAFANA VERSION>" >}}