How do I customize my app's startup experience when using DocumentGroup in SwiftUI with SwiftData? I don't want my users to be greeted with a document browser on startup. Rather, I want to offer an experience like PhotoShop where the user is greeted by an "empty" version of my app's editor view. They can then use something like File->New or File->Open to get started.

Where is the link to the Starter and completed projects for this session