allow sorting catalogs on title

Author: jonhealy1

stac_fastapi/elasticsearch/stac_fastapi/elasticsearch/database_logic.py

@@ -1776,7 +1776,7 @@ async def get_all_catalogs(
             A tuple of (catalogs, next pagination token if any, optional count).
         """
         # Define sortable fields for catalogs
-        sortable_fields = ["id"]
+        sortable_fields = ["id", "title"]
 
         # Format the sort parameter
         formatted_sort = []

stac_fastapi/opensearch/stac_fastapi/opensearch/database_logic.py

@@ -1745,7 +1745,7 @@ async def get_all_catalogs(
             A tuple of (catalogs, next pagination token if any, optional count).
         """
         # Define sortable fields for catalogs
-        sortable_fields = ["id"]
+        sortable_fields = ["id", "title"]
 
         # Format the sort parameter
         formatted_sort = []