Expose an enum property on an ElementComposite

Use @SerializedName on each enum constant to control the attribute string written to the DOM, then wire the enum through a PropertyDescriptor so get/set handle serialization automatically.

import com.google.gson.annotations.SerializedName;
import com.webforj.component.element.ElementComposite;
import com.webforj.component.element.PropertyDescriptor;
import com.webforj.component.element.annotation.NodeName;

@NodeName("my-card")
public class MyCard extends ElementComposite {

  public enum Variant {
    @SerializedName("default")
    DEFAULT,

    @SerializedName("primary")
    PRIMARY,

    @SerializedName("danger")
    DANGER;
  }

  private final PropertyDescriptor<Variant> variantProp =
      PropertyDescriptor.property("variant", Variant.DEFAULT);

  public Variant getVariant() {
    return get(variantProp);
  }

  public MyCard setVariant(Variant variant) {
    set(variantProp, variant);
    return this;
  }
}