chore: integrate Hive for local storage management

- Added `hive_ce` and `hive_ce_flutter` dependencies for enhanced local storage capabilities.
- Refactored the main application to initialize Hive and migrate existing data.
- Updated storage service implementations to utilize Hive for managing application settings and task queues.
- Removed the deprecated `StorageService` class to streamline the codebase and improve maintainability.

lib/core/persistence/persistence_providers.dart

@@ -0,0 +1,10 @@
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+import 'hive_boxes.dart';
+
+part 'persistence_providers.g.dart';
+
+/// Provides access to eagerly opened Hive boxes. Must be overridden in [main].
+@Riverpod(keepAlive: true)
+HiveBoxes hiveBoxes(Ref ref) =>
+    throw UnimplementedError('Hive boxes must be provided during bootstrap.');