🐛 Fixed broken editor state when deleting a selection containing cards
🐛 Fixed broken editor state when deleting a selection containing cards

closes https://github.com/TryGhost/Ghost/issues/9852
- Ember was throwing an error because we weren't using `.set` to set properties on the editor component which halted execution whilst the component cards were being re-rendered

TryGhost/Ghost-Admin,TryGhost/Ghost-Admin,kevinansfield/Ghost-Admin,kevinansfield/Ghost-Admin