Change Details

TODO

Part of [ENG-4319](https://linear.app/comm/issue/ENG-4319/warn-the-user-when-deleting-a-chat-that-has-contained-chats). A new selector is needed to obtain contained chats.

TODOPart of [ENG-4319](https://linear.app/comm/issue/ENG-4319/warn-the-user-when-deleting-a-chat-that-has-contained-chats). A new selector is needed to obtain contained chats.