claude refactorings, flutter best practices, platform dependent changes, general cleanup

lib/state/app/modules/settings/bloc/settings_cubit.dart

@@ -1,10 +1,10 @@
 import 'dart:async';
 import 'dart:developer';
 
-import 'package:easy_debounce/easy_debounce.dart';
 import 'package:hydrated_bloc/hydrated_bloc.dart';
 
 import '../../../../../storage/settings.dart';
+import '../../../../../utils/debouncer.dart';
 import '../../../../../view/pages/settings/data/default_settings.dart';
 import '../../app_modules.dart';
 
@@ -27,7 +27,7 @@ class SettingsCubit extends HydratedCubit<Settings> {
           _emitFreshInstance();
         });
       }
-      EasyDebounce.debounce(_debounceTag, const Duration(milliseconds: 500), _emitFreshInstance);
+      Debouncer.debounce(_debounceTag, const Duration(milliseconds: 500), _emitFreshInstance);
     }
     return state;
   }
@@ -77,7 +77,7 @@ class SettingsCubit extends HydratedCubit<Settings> {
     oldMap.forEach((key, value) {
       if (merged.containsKey(key)) {
         if (value is Map<String, dynamic> && merged[key] is Map<String, dynamic>) {
-          merged[key] = _mergeSettings(value, merged[key]);
+          merged[key] = _mergeSettings(value, merged[key] as Map<String, dynamic>);
         } else {
           merged[key] = value;
         }