Migrate dashboard "Azure Spring Cloud System Logs" to Lens (#6397)

* Azure Spring Cloud logs Overview - Migration to Lens

* fix small typo

* fix titles

* fix style plots

* [Logs Azure] Azure Spring Cloud Logs System Logs - Migration to Lens

* Remove global dashboard filters and only use panel filter - latest guidelines

* Changelog and manifest

* Change version

* Changelog update to test pipeline

Author: tdancheva

packages/azure/changelog.yml

@@ -1,3 +1,8 @@
+- version: "1.5.15"
+  changes:
+    - description: Migration of Spring Cloud System Logs dashboard to Lens
+      type: enhancement
+      link: https://github.com/elastic/integrations/pull/6397
 - version: "1.5.14"
   changes:
     - description: Enhancement/Improving performance of the dashboards