add paginationLimit to message list core and ui package

packages/stream_chat_flutter/lib/src/message_input.dart

@@ -2309,6 +2309,7 @@ class __PickerWidgetState extends State<_PickerWidget> {
 
           return InkWell(
             onTap: () async {
+              print('on tap');
               PhotoManager.openSetting();
             },
             child: Container(

packages/stream_chat_flutter/lib/src/message_list_view.dart

@@ -166,11 +166,15 @@ class MessageListView extends StatefulWidget {
     this.showFloatingDateDivider = true,
     this.threadSeparatorBuilder,
     this.messageListController,
+    this.paginationLimit = 20,
   }) : super(key: key);
 
   /// Function used to build a custom message widget
   final MessageBuilder? messageBuilder;
 
+  /// Limit used during pagination
+  final int paginationLimit;
+
   /// Function used to build a custom system message widget
   final SystemMessageBuilder? systemMessageBuilder;
 
@@ -328,6 +332,7 @@ class _MessageListViewState extends State<MessageListView> {
 
   @override
   Widget build(BuildContext context) => MessageListCore(
+        paginationLimit: widget.paginationLimit,
         messageFilter: widget.messageFilter,
         loadingBuilder: widget.loadingBuilder ??
             (context) => const Center(
@@ -640,7 +645,9 @@ class _MessageListViewState extends State<MessageListView> {
       );
 
   Future<void> _paginateData(
-          StreamChannelState? channel, QueryDirection direction) =>
+    StreamChannelState? channel,
+    QueryDirection direction,
+  ) =>
       _messageListController.paginateData!(direction: direction);
 
   int? _getTopElementIndex(Iterable<ItemPosition> values) {