[TASK] Recommend pagemachine/searchable extension (#601)

The elasticsearch/elasticsearch package is not a TYPO3 extension but merely a library to interact with Elasticsearch. A proper TYPO3 integration needs custom code or packages like pagemachine/searchable.

Documentation/Extensions/RecommendedExtensions.rst

@@ -57,9 +57,9 @@ streamlined workflows, and powerful enhancements for TYPO3 development.
     core, making it a great solution for sites that require basic search
     without additional configuration.
 
-*   Elasticsearch Integration: :composer:`elasticsearch/elasticsearch`
+*   Elasticsearch Integration: :composer:`pagemachine/searchable`
 
-    Elasticsearch integration for TYPO3 provides a connection to the
-    Elasticsearch engine, known for its high-speed search capabilities and
-    scalability. This extension is ideal for large-scale websites or
-    applications that demand robust search functionality.
+    Searchable for TYPO3 provides an integration of the Elasticsearch engine,
+    known for its high-speed search capabilities and scalability. This extension
+    is ideal for large-scale websites or applications that demand robust search
+    functionality.