feat: add copyWithStyle property to StacText.

examples/movie_app/lib/main.dart

@@ -30,9 +30,9 @@ class MyApp extends StatelessWidget {
     return StacApp(
       title: 'Flutter Demo',
       theme: StacTheme.fromJson(darkThemeJson),
-      homeBuilder:
-          (context) =>
-              Stac.fromAssets('assets/jsons/screens/onboarding_screen.json'),
+      homeBuilder: (_) {
+        return Stac.fromAssets('assets/jsons/screens/onboarding_screen.json');
+      },
     );
   }
 }

packages/stac/lib/src/parsers/widgets/stac_text/stac_text.dart

@@ -23,6 +23,7 @@ abstract class StacText with _$StacText {
     String? semanticsLabel,
     TextWidthBasis? textWidthBasis,
     String? selectionColor,
+    StacTextStyle? copyWithStyle,
   }) = _StacText;
 
   factory StacText.fromJson(Map<String, dynamic> json) =>
@@ -34,6 +35,7 @@ abstract class StacTextSpan with _$StacTextSpan {
   const factory StacTextSpan({
     String? data,
     StacTextStyle? style,
+    StacTextStyle? copyWithStyle,
     Map<String, dynamic>? onTap,
   }) = _StacTextSpan;