Made build portable

dependencies/fluent_ui-3.12.0/lib/src/navigation/route.dart

@@ -0,0 +1,57 @@
+import 'package:fluent_ui/fluent_ui.dart';
+
+/// A modal route that replaces the entire screen.
+class FluentPageRoute<T> extends PageRoute<T> {
+  late final WidgetBuilder _builder;
+  // ignore: prefer_final_fields
+  bool _maintainState = true;
+  final String? _barrierLabel;
+
+  /// Creates a modal route that replaces the entire screen.
+  FluentPageRoute({
+    bool maintainState = true,
+    String? barrierLabel,
+    required WidgetBuilder builder,
+    RouteSettings? settings,
+    bool fullscreenDialog = false,
+  })  : _maintainState = maintainState,
+        _barrierLabel = barrierLabel,
+        _builder = builder,
+        super(
+          settings: settings,
+          fullscreenDialog: fullscreenDialog,
+        );
+
+  @override
+  Color? get barrierColor => null;
+
+  @override
+  String? get barrierLabel => _barrierLabel;
+
+  @override
+  Widget buildPage(
+    BuildContext context,
+    Animation<double> animation,
+    Animation<double> secondaryAnimation,
+  ) {
+    assert(debugCheckHasFluentTheme(context));
+    final Widget result = _builder(context);
+    return Semantics(
+      scopesRoute: true,
+      explicitChildNodes: true,
+      child: DrillInPageTransition(
+        animation: CurvedAnimation(
+          parent: animation,
+          curve: FluentTheme.of(context).animationCurve,
+        ),
+        child: result,
+      ),
+    );
+  }
+
+  @override
+  bool get maintainState => _maintainState;
+
+  @override
+  Duration get transitionDuration => const Duration(milliseconds: 200);
+}