CupertinoSwitch: Add an interactive example by @TahaTesser in https://github.com/flutter/flutter/pull/103043

Cupertino examples improvements and clean up by @TahaTesser in https://github.com/flutter/flutter/pull/103044

Fix DraggableScrollableSheet leaks Ticker by @bleroux in https://github.com/flutter/flutter/pull/102916

Add missing HIG links to cupertino documentation by @guidezpl in https://github.com/flutter/flutter/pull/103110

rename local functions with _s by @pq in https://github.com/flutter/flutter/pull/102991

Revert “Add assertion that snackbars have a place to go” by @Piinks in https://github.com/flutter/flutter/pull/103138