Support for Held Progress Animation

I have been trying to make it work without success, but after debugging layer by layer, I finally found the reason.

• Make sure that "held" and "UIHold Data" are configured correctly.

• Only actions with trigger types that support "held" can bind to the "held" action.

      bool UCommonActionWidget::IsHeldAction() const
      {
          if (EnhancedInputAction && CommonUI::IsEnhancedInputSupportEnabled())
          {
              for (const TObjectPtr<UInputTrigger>& Trigger : EnhancedInputAction->Triggers)
              {
                  if (EnumHasAnyFlags(Trigger->GetSupportedTriggerEvents(), ETriggerEventsSupported::Ongoing))
                  {
                      return true;
                  }
              }
  
              return false;
          }
      }

  Otherwise, the progress image used for the animation will be hidden.

          if (IsHeldAction())
          {
              MyProgressImage->SetVisibility(EVisibility::SelfHitTestInvisible);
          }
          else
          {
              MyProgressImage->SetVisibility(EVisibility::Collapsed);
          }

  Therefore, open the corresponding InputAction and add support for "Hold":