chore(wip): upgrade dependencies, begin refactor

frontend/lib/data/models/landmark_model.dart

@@ -0,0 +1,30 @@
+import 'package:anyway/domain/entities/landmark.dart';
+import 'package:anyway/domain/entities/landmark_description.dart';
+import 'package:anyway/domain/entities/landmark_type.dart';
+import 'package:freezed_annotation/freezed_annotation.dart';
+part 'landmark_model.freezed.dart';
+part 'landmark_model.g.dart';
+
+@freezed
+abstract class LandmarkModel with _$LandmarkModel {
+  const factory LandmarkModel({
+    required String uuid,
+    required String name,
+    required List<double> location,
+    required String type,
+    required bool isSecondary,
+    required String description,
+  }) = _LandmarkModel;
+
+  factory LandmarkModel.fromJson(Map<String, dynamic> json) => _$LandmarkModelFromJson(json);
+
+  Landmark toEntity() => Landmark(
+    uuid: uuid,
+    name: name,
+    location: location,
+    type: LandmarkType(type: LandmarkTypeEnum.values.firstWhere((e) => e.value == type)),
+    isSecondary: isSecondary,
+    // TODO - try to set tags
+    description: LandmarkDescription(description: description, tags: [])
+  );
+}