chore: more explicit documentation

Author: Fluf22

clients/algoliasearch-client-swift/Sources/Search/Extra/SearchClientExtension.swift

@@ -644,7 +644,8 @@ public extension SearchClient {
    - Parameter indexName: The name of the index in which the search queries should be performed
    - Parameter searchParamsObject: The search query params.
    - Parameter refinements: Refinements to apply to the search in form of dictionary with
-     facet attribute as a key and a list of facet values for the designated attribute
+     facet attribute as a key and a list of facet values for the designated attribute.
+     Any facet in this list not present in the `disjunctiveFacets` set will be filtered conjunctively.
    - Parameter disjunctiveFacets: Set of facets attributes applied disjunctively (with OR operator)
    - Parameter keepSelectedEmptyFacets: Whether the selected facet values might be preserved even
      in case of their absence in the search response