* Elasticsearch: remove usages of any
* Elasticsearch: check for filter type when accessing field aggs
* Elasticsearch: use type guards instead of checking types
* Use unknown for isPrimitive function
* Add deprecation notice
* Remove unused type
* Fix bug in "isPrimitive" function
* Remove unused import
* Revert "Fix bug in "isPrimitive" function"
This reverts commit 27f9874cce.