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

* refactor(mobile): entities

* store entity

* refactor: models

* remove domain

* save all

* bad refactor

mobile/lib/models/activities/activity.model.dart

@@ -0,0 +1,77 @@
+import 'package:immich_mobile/entities/user.entity.dart';
+import 'package:openapi/api.dart';
+
+enum ActivityType { comment, like }
+
+class Activity {
+  final String id;
+  final String? assetId;
+  final String? comment;
+  final DateTime createdAt;
+  final ActivityType type;
+  final User user;
+
+  const Activity({
+    required this.id,
+    this.assetId,
+    this.comment,
+    required this.createdAt,
+    required this.type,
+    required this.user,
+  });
+
+  Activity copyWith({
+    String? id,
+    String? assetId,
+    String? comment,
+    DateTime? createdAt,
+    ActivityType? type,
+    User? user,
+  }) {
+    return Activity(
+      id: id ?? this.id,
+      assetId: assetId ?? this.assetId,
+      comment: comment ?? this.comment,
+      createdAt: createdAt ?? this.createdAt,
+      type: type ?? this.type,
+      user: user ?? this.user,
+    );
+  }
+
+  Activity.fromDto(ActivityResponseDto dto)
+      : id = dto.id,
+        assetId = dto.assetId,
+        comment = dto.comment,
+        createdAt = dto.createdAt,
+        type = dto.type == ActivityResponseDtoTypeEnum.comment
+            ? ActivityType.comment
+            : ActivityType.like,
+        user = User.fromSimpleUserDto(dto.user);
+
+  @override
+  String toString() {
+    return 'Activity(id: $id, assetId: $assetId, comment: $comment, createdAt: $createdAt, type: $type, user: $user)';
+  }
+
+  @override
+  bool operator ==(covariant Activity other) {
+    if (identical(this, other)) return true;
+
+    return other.id == id &&
+        other.assetId == assetId &&
+        other.comment == comment &&
+        other.createdAt == createdAt &&
+        other.type == type &&
+        other.user == user;
+  }
+
+  @override
+  int get hashCode {
+    return id.hashCode ^
+        assetId.hashCode ^
+        comment.hashCode ^
+        createdAt.hashCode ^
+        type.hashCode ^
+        user.hashCode;
+  }
+}