6eb12c6843
Updates the AppIcon assets in the macOS app template to meet Apple's icon guidelines as of macOS Big Sur. Assets were moved to the [flutter_template_images][1] package, which includes them as of version 4.1.0. Ref: https://developer.apple.com/design/human-interface-guidelines/macos/icons-and-images/app-icon/ Issue: https://github.com/flutter/flutter/issues/103371 [1]: https://github.com/flutter/packages/tree/main/packages/flutter_template_images