docs: change paginationParams to limit

docusaurus/docs/Flutter/stream_chat_flutter/message_search_list_view.mdx

@@ -29,7 +29,7 @@ class MessageSearchPage extends StatelessWidget {
         child: MessageSearchListView(
           filters: Filter.in_('members', [StreamChat.of(context).user!.id],),
           messageQuery: 'your query here',
-          paginationParams: PaginationParams(limit: 20),
+          limit: 20,
         ),
       ),
     );

docusaurus/docs/Flutter/stream_chat_flutter_core/message_search_list_core.mdx

@@ -28,9 +28,9 @@ class MessageSearchPage extends StatelessWidget {
   Widget build(BuildContext context) {
     return Scaffold(
       body: MessageSearchListCore(
-              messageQuery: _messageFilter,
-              filters: _channelsFilter,
-              paginationParams: PaginationParams(limit: 20),
+        messageQuery: _messageFilter,
+        filters: _channelsFilter,
+        limit: 20,
       ),
     );
   }