feat(ui_kit): update example by removing adaptative theme

packages/wyatt_ui_kit/example/lib/cubit/app_mode_cubit.dart

@@ -0,0 +1,24 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+part 'app_mode_state.dart';
+
+class AppModeCubit extends Cubit<AppModeState> {
+  AppModeCubit({
+    required int theme,
+    required Brightness brightness,
+  }) : super(
+          AppModeState(
+            theme: theme,
+            brightness: brightness,
+          ),
+        );
+
+  void changeTheme(int theme) {
+    emit(state.copyWith(theme: theme));
+  }
+
+  void changeBrightness(Brightness brightness) {
+    emit(state.copyWith(brightness: brightness));
+  }
+}

packages/wyatt_ui_kit/example/lib/cubit/app_mode_state.dart

@@ -0,0 +1,32 @@
+// ignore_for_file: avoid_equals_and_hash_code_on_mutable_classes
+
+part of 'app_mode_cubit.dart';
+
+class AppModeState {
+  const AppModeState({
+    required this.theme,
+    required this.brightness,
+  });
+  final int theme;
+  final Brightness brightness;
+
+  AppModeState copyWith({
+    int? theme,
+    Brightness? brightness,
+  }) =>
+      AppModeState(
+        theme: theme ?? this.theme,
+        brightness: brightness ?? this.brightness,
+      );
+
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      other is AppModeState &&
+          runtimeType == other.runtimeType &&
+          theme == other.theme &&
+          brightness == other.brightness;
+
+  @override
+  int get hashCode => theme.hashCode ^ brightness.hashCode;
+}