better linting

lib/features/home/data/models/image_model.dart

@@ -2,13 +2,24 @@ import '../dtos/image_model_dto.dart';
 
 /// Represents an Image, that would be displayed in the gallery.
 class ImageModel {
-  const ImageModel({
+  const ImageModel._({
     required this.uri,
     required this.imageIndex,
     required this.imageName,
     required this.isFavourite,
   });
 
+  factory ImageModel.fromDto({
+    required ImageModelDTO imageModelDto,
+    required bool isFavourite,
+  }) =>
+      ImageModel._(
+        uri: imageModelDto.uri,
+        imageIndex: imageModelDto.imageIndex,
+        imageName: imageModelDto.imageName,
+        isFavourite: isFavourite,
+      );
+
   /// An image's target [Uri].
   ///
   /// Storing an image's [ByteData] is more expensive, memory-wise.
@@ -23,24 +34,13 @@ class ImageModel {
   /// Whether the image was 'Starred' ot not.
   final bool isFavourite;
 
-  factory ImageModel.fromDto({
-    required ImageModelDTO imageModelDto,
-    required bool isFavourite,
-  }) =>
-      ImageModel(
-        uri: imageModelDto.uri,
-        imageIndex: imageModelDto.imageIndex,
-        imageName: imageModelDto.imageName,
-        isFavourite: isFavourite,
-      );
-
   ImageModel copyWith({
     Uri? uri,
     int? imageIndex,
     String? imageName,
     bool? isFavourite,
   }) {
-    return ImageModel(
+    return ImageModel._(
       uri: uri ?? this.uri,
       imageIndex: imageIndex ?? this.imageIndex,
       imageName: imageName ?? this.imageName,