rename to SpacingSideDTO

packages/mix/lib/src/attributes/gap/gap_util.dart

@@ -1,12 +1,13 @@
 import '../../core/attribute.dart';
 import '../../core/utility.dart';
 import '../../theme/tokens/space_token.dart';
-import 'gap_dto.dart';
+import 'spacing_side_dto.dart';
 
-final class GapUtility<T extends Attribute> extends MixUtility<T, GapDto> {
+final class GapUtility<T extends Attribute>
+    extends MixUtility<T, SpacingSideDto> {
   const GapUtility(super.builder);
 
-  T call(double value) => builder(GapDto(value));
+  T call(double value) => builder(SpacingSideDto(value));
 
-  T ref(SpaceToken ref) => builder(GapDto(ref()));
+  T ref(SpaceToken ref) => builder(SpacingSideDto(ref()));
 }

packages/mix/lib/src/attributes/gap/gap_dto.dart → packages/mix/lib/src/attributes/gap/spacing_side_dto.dart

@@ -1,14 +1,14 @@
 import '../../core/dto.dart';
 import '../../core/factory/mix_data.dart';
 
-class GapDto extends Dto<double> {
+class SpacingSideDto extends Dto<double> {
   final double? value;
 
-  const GapDto(this.value);
+  const SpacingSideDto(this.value);
 
   @override
-  GapDto merge(GapDto? other) {
-    return GapDto(other?.value ?? value);
+  SpacingSideDto merge(SpacingSideDto? other) {
+    return SpacingSideDto(other?.value ?? value);
   }
 
   @override