feat(ui_kit): update example by removing adaptative theme

packages/wyatt_ui_kit/example/lib/theme/themes.dart

@@ -14,10 +14,11 @@
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
 
-import 'package:adaptive_theme/adaptive_theme.dart';
 import 'package:flutter/material.dart' hide CardTheme;
+import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:google_fonts/google_fonts.dart';
 import 'package:wyatt_ui_kit/wyatt_ui_kit.dart';
+import 'package:wyatt_ui_kit_example/cubit/app_mode_cubit.dart';
 
 /// Easely switch between Material and Studio themes.
 abstract class Themes {
@@ -46,17 +47,11 @@ abstract class Themes {
   }
 
   static void material(BuildContext context) {
-    AdaptiveTheme.of(context).setTheme(
-      light: materialLight,
-      dark: materialDark,
-    );
+    context.read<AppModeCubit>().changeTheme(0);
   }
 
   static void studio(BuildContext context) {
-    AdaptiveTheme.of(context).setTheme(
-      light: studioLight,
-      dark: studioDark,
-    );
+    context.read<AppModeCubit>().changeTheme(1);
   }
 
   static ThemeData get materialLight => ThemeData.light().copyWith(