refactor(mobile): introduce Album & User classes (#1561)

replace usages of AlbumResponseDto with Album
replace usages of UserResponseDto with User

mobile/lib/shared/models/user.dart

@@ -0,0 +1,94 @@
+import 'package:openapi/api.dart';
+
+class User {
+  User({
+    required this.id,
+    required this.email,
+    required this.firstName,
+    required this.lastName,
+    required this.profileImagePath,
+    required this.isAdmin,
+    required this.oauthId,
+  });
+
+  User.fromDto(UserResponseDto dto)
+      : id = dto.id,
+        email = dto.email,
+        firstName = dto.firstName,
+        lastName = dto.lastName,
+        profileImagePath = dto.profileImagePath,
+        isAdmin = dto.isAdmin,
+        oauthId = dto.oauthId;
+
+  String id;
+  String email;
+  String firstName;
+  String lastName;
+  String profileImagePath;
+  bool isAdmin;
+  String oauthId;
+
+  @override
+  bool operator ==(other) {
+    if (other is! User) return false;
+    return id == other.id &&
+        email == other.email &&
+        firstName == other.firstName &&
+        lastName == other.lastName &&
+        profileImagePath == other.profileImagePath &&
+        isAdmin == other.isAdmin &&
+        oauthId == other.oauthId;
+  }
+
+  @override
+  int get hashCode =>
+      id.hashCode ^
+      email.hashCode ^
+      firstName.hashCode ^
+      lastName.hashCode ^
+      profileImagePath.hashCode ^
+      isAdmin.hashCode ^
+      oauthId.hashCode;
+
+  UserResponseDto toDto() {
+    return UserResponseDto(
+      id: id,
+      email: email,
+      firstName: firstName,
+      lastName: lastName,
+      profileImagePath: profileImagePath,
+      createdAt: '',
+      isAdmin: isAdmin,
+      shouldChangePassword: false,
+      oauthId: oauthId,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    final json = <String, dynamic>{};
+    json["id"] = id;
+    json["email"] = email;
+    json["firstName"] = firstName;
+    json["lastName"] = lastName;
+    json["profileImagePath"] = profileImagePath;
+    json["isAdmin"] = isAdmin;
+    json["oauthId"] = oauthId;
+    return json;
+  }
+
+  static User? fromJson(dynamic value) {
+    if (value is Map) {
+      final json = value.cast<String, dynamic>();
+      return User(
+        id: json["id"],
+        email: json["email"],
+        firstName: json["firstName"],
+        lastName: json["lastName"],
+        profileImagePath: json["profileImagePath"],
+        isAdmin: json["isAdmin"],
+        oauthId: json["oauthId"],
+      );
+    }
+    return null;
+  }
+}