This means that all content models will now come from the same source to remove duplication across multiple models and `chatbarcaches`. It also handily breaks the dependency on needing `MessageContentModel` for `NeochatRoom`
This means that all content models will now come from the same source to remove duplication across multiple models and `chatbarcaches`. It also handily breaks the dependency on needing `MessageContentModel` for `NeochatRoom`