v5.2.0 of flutter_smart_dialog

An elegant Flutter Dialog solution, Easily implement Toast, Loading and custom Dialog, Make the use of the dialog easier! Changelog excerpt: - Fix [#293](https://github.com/fluttercandies/flutter_smart_dialog/issues/293): migrate from Flutter's bundled Material and Cupertino libraries to the standalone `material_ui`and `cupertino_ui`packages introduced with Flutter 3.47 - Require Dart 3.12 and…