refactor(mobile): entities and models (#9182)

* refactor(mobile): entities

* store entity

* refactor: models

* remove domain

* save all

* bad refactor

mobile/lib/models/albums/asset_selection_page_result.model.dart

@@ -0,0 +1,21 @@
+import 'package:collection/collection.dart';
+import 'package:immich_mobile/entities/asset.entity.dart';
+
+class AssetSelectionPageResult {
+  final Set<Asset> selectedAssets;
+
+  AssetSelectionPageResult({
+    required this.selectedAssets,
+  });
+  @override
+  bool operator ==(Object other) {
+    if (identical(this, other)) return true;
+    final setEquals = const DeepCollectionEquality().equals;
+
+    return other is AssetSelectionPageResult &&
+        setEquals(other.selectedAssets, selectedAssets);
+  }
+
+  @override
+  int get hashCode => selectedAssets.hashCode;
+}