Material and Cupertino widgets were [decoupled](https://flutter.dev/blog/decoupling-material-cupertino) from the Flutter repository and now require importing `material_ui` and `cupertino_ui`. - [ ] Refactor `Slider` widget - [ ] Refactor `ReorderableListView` widget - [ ] Refactor `Acrylic` widget - [ ] Refactor `InfoBar` widget - [ ] Refactor `FluentApp` widget Do not export `material_ui` widgets.
Material and Cupertino widgets were decoupled from the Flutter repository and now require importing
material_uiandcupertino_ui.SliderwidgetReorderableListViewwidgetAcrylicwidgetInfoBarwidgetFluentAppwidgetDo not export
material_uiwidgets.