fix: demo avatar list scrollbar should be hidden

Author: wwayne

demo/src/App/AvatarList/index.tsx

@@ -78,7 +78,7 @@ export default class AvatarList extends Component {
         {/* List */}
         <div
           id={this.listId}
-          className="AvatarList overflow-x-auto">
+          className="AvatarList overflow-x-hidden">
           <div
             className="listWrapper flex items-center py-3"
             style={{