chore(docs): custom and built-in event logging class at the same time (…

…#20098)

* chore: custom and built-in event logging class at the same time

* fix whitespaces

* Update Event Logging docs

docs/docs/installation/event-logging.mdx

@@ -9,9 +9,11 @@ version: 1
 
 ### Event Logging
 
-Superset by default logs special action events in its internal database. These logs can be accessed
+Superset by default logs special action events in its internal database (DBEventLogger). These logs can be accessed
 on the UI by navigating to **Security > Action Log**. You can freely customize these logs by
 implementing your own event log class.
+**When custom log class is enabled DBEventLogger is disabled and logs stop being populated in UI logs view.**
+To achieve both, custom log class should extend built-in DBEventLogger log class.
 
 Here's an example of a simple JSON-to-stdout class: