fix types

mobile/lib/infrastructure/entities/remote_asset_metadata.entity.dart

@@ -1,6 +1,7 @@
+import 'dart:convert';
+
 import 'package:drift/drift.dart';
 import 'package:drift/extensions/json1.dart';
-import 'package:immich_mobile/domain/models/asset/asset_metadata.model.dart';
 import 'package:immich_mobile/infrastructure/entities/remote_asset.entity.dart';
 import 'package:immich_mobile/infrastructure/utils/drift_default.mixin.dart';
 
@@ -12,26 +13,17 @@ class RemoteAssetMetadataEntity extends Table with DriftDefaultsMixin {
 
   TextColumn get assetId => text().references(RemoteAssetEntity, #id, onDelete: KeyAction.cascade)();
 
-  TextColumn get key => text().map(const RemoteAssetMetadataKeyConverter())();
-
-  TextColumn get cloudId => text().generatedAs(key.jsonExtract(r'$.iCloudId'), stored: true)();
+  TextColumn get key => text()();
 
   BlobColumn get value => blob().map(assetMetadataConverter)();
 
+  TextColumn get cloudId => text().generatedAs(key.jsonExtract(r'$.iCloudId'), stored: true)();
+
   @override
   Set<Column> get primaryKey => {assetId, key};
 }
 
-class RemoteAssetMetadataKeyConverter extends TypeConverter<RemoteAssetMetadataKey, String> {
-  const RemoteAssetMetadataKeyConverter();
-
-  @override
-  RemoteAssetMetadataKey fromSql(String fromDb) => RemoteAssetMetadataKey.fromKey(fromDb);
-
-  @override
-  String toSql(RemoteAssetMetadataKey value) => value.key;
-}
-
 final JsonTypeConverter2<Map<String, Object?>, Uint8List, Object?> assetMetadataConverter = TypeConverter.jsonb(
   fromJson: (json) => json as Map<String, Object?>,
+  toJson: (value) => jsonEncode(value),
 );