Collapsible Group in Edgeless Mode

[houshasen]

As the project content grows with an increasing number of notes and other items, I find that grouping in Edgeless Mode is helpful. However, I also hope for a feature similar to a folder where I can drag and drop notes or items to hide them.

To achieve this in the AFFiNE way, what if we make groups collapsible? They would essentially become single-level folders in Edgeless Mode.