improve shutdown routine

app/lib/features/web_feed/data/providers.dart

@@ -24,7 +24,7 @@ import 'package:drift/native.dart';
 import 'package:path/path.dart' as p;
 import 'package:riverpod_annotation/riverpod_annotation.dart';
 import 'package:sqlite3_flutter_libs/sqlite3_flutter_libs.dart';
-
+import 'package:weblibre/core/database_registry.dart';
 import 'package:weblibre/core/filesystem.dart';
 import 'package:weblibre/features/web_feed/data/database/database.dart';
 
@@ -45,6 +45,8 @@ FeedDatabase feedDatabase(Ref ref) {
     }),
   );
 
+  DatabaseRegistry.instance.register('feed', db);
+
   ref.onDispose(() async {
     await db.close();
   });

app/lib/features/web_feed/data/providers.g.dart

@@ -48,4 +48,4 @@ final class FeedDatabaseProvider
   }
 }
 
-String _$feedDatabaseHash() => r'8f24d15d6da7e498bfcd9303698f109028b492fc';
+String _$feedDatabaseHash() => r'182dd4203290835fc2188627db08fb0491bd91b2';