feat: Added error tile for message search list view

lib/src/message_search_list_view.dart

@@ -2,6 +2,7 @@ import 'dart:convert';
 
 import 'package:flutter/material.dart';
 import 'package:stream_chat/stream_chat.dart';
+import 'package:stream_chat_flutter/src/info_tile.dart';
 import 'package:stream_chat_flutter/src/message_search_item.dart';
 
 import '../stream_chat_flutter.dart';
@@ -63,6 +64,7 @@ class MessageSearchListView extends StatefulWidget {
     this.onItemTap,
     this.showResultCount = true,
     this.pullToRefresh = true,
+    this.showErrorTile = false,
   }) : super(key: key);
 
   /// Message String to search on
@@ -111,6 +113,8 @@ class MessageSearchListView extends StatefulWidget {
   /// Set it to false to disable the pull-to-refresh widget
   final bool pullToRefresh;
 
+  final bool showErrorTile;
+
   @override
   _MessageSearchListViewState createState() => _MessageSearchListViewState();
 }
@@ -205,7 +209,12 @@ class _MessageSearchListViewState extends State<MessageSearchListView> {
               message = 'Check your connection and retry';
             }
           }
-          return Center(
+          return InfoTile(
+            showMessage: widget.showErrorTile,
+            tileAnchor: Alignment.topCenter,
+            childAnchor: Alignment.topCenter,
+            message: 'An error occurred.',
+            child: Center(
               child: Column(
                 mainAxisAlignment: MainAxisAlignment.center,
                 children: <Widget>[
@@ -241,6 +250,7 @@ class _MessageSearchListViewState extends State<MessageSearchListView> {
                   ),
                 ],
               ),
+            ),
           );
         }
 

lib/stream_chat_flutter.dart

@@ -46,3 +46,4 @@ export 'src/unread_indicator.dart';
 export 'src/option_list_tile.dart';
 export 'src/channel_file_display_screen.dart';
 export 'src/channel_media_display_screen.dart';
+export 'src/info_tile.dart';