test(core): fix message search list core tests

Signed-off-by: xsahil03x <[email protected]>

packages/stream_chat_flutter_core/lib/src/message_search_list_core.dart

@@ -38,7 +38,7 @@ class MessageSearchListCore extends StatefulWidget {
   /// * [errorBuilder]
   /// * [loadingBuilder]
   /// * [childBuilder]
-  MessageSearchListCore({
+  const MessageSearchListCore({
     Key? key,
     required this.emptyBuilder,
     required this.errorBuilder,
@@ -58,12 +58,6 @@ class MessageSearchListCore extends StatefulWidget {
           messageQuery == null || messageFilters == null,
           "Can't provide both `query` and `messageFilters` at the same time",
         ),
-        assert(
-          paginationParams?.offset == null ||
-              paginationParams?.offset == 0 ||
-              sortOptions == null,
-          'Cannot specify `offset` with `sortOptions` parameter',
-        ),
         super(key: key);
 
   /// A [MessageSearchListController] allows reloading and pagination.