Turn Query DSL page in Explore & Analyze into an overview of Query DSL usage in Kibana #2858
Description
The current page doesn't bring much value as compared to the its counterpart in the reference section.
As part of the effort to bring Explore & Analyze closer to Kibana, we should update this page to list the difference usage of this language that we can make throughout Kibana, similar to the ES|QL page. I didn't find a place in the docs where we say how Query DSL can be useful as a language when using Kibana
This issue relates to: #2697