Fix copyWith method for Button and text field node.

Author: BirjuVachhani

lib/src/api/nodes/button_node.dart

@@ -269,7 +269,7 @@ class ButtonProperties with ShapeBorderMixin, SerializableMixin {
     CornerRadius? cornerRadius,
     bool? enabled,
     String? label,
-    StartEndProp? labelStyle,
+    TextProp? labelStyle,
     TextAlignHorizontalEnum? labelAlignment,
     IconPlacementEnum? placement,
     double? gap,

lib/src/api/nodes/text_field_node.dart

@@ -244,7 +244,7 @@ class TextFieldProperties with SerializableMixin, EquatableMixin {
     int? maxLines,
     int? minLines,
     String? obscuringCharacter,
-    StartEndProp? inputStyle,
+    TextProp? inputStyle,
     InputDecorationModel? decoration,
     bool? expands,
   }) {