476e2d5166
fixes [Showcase `Badge` widget in `NavigationBar` and `NavigationRail` examples ](https://github.com/flutter/flutter/issues/129832) | Preview | Preview | Preview | | --------------- | --------------- | --------------- | | <img src="https://github.com/flutter/flutter/assets/48603081/808c9577-c6b4-465f-b9fe-100d422dd408" /> | <img src="https://github.com/flutter/flutter/assets/48603081/c9b3ee03-56d7-4220-94cf-06e235631714" /> | <img src="https://github.com/flutter/flutter/assets/48603081/43fab47b-25e8-4412-92d2-6d4868e43ff8" /> |