feat: recover hair, when headwear is not selected (#224)

## [SDK-777](https://ready-player-me.atlassian.net/browse/SDK-777)

## Description

-   Recover hair, when headwear is selected

## How to Test

-   Test in experimental scene, that this works correctly





[SDK-777]:
https://ready-player-me.atlassian.net/browse/SDK-777?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

Runtime/AvatarCreator/Scripts/UI/Elements/SelectionElement.cs

@@ -80,7 +80,7 @@ public void AddClearButton(SelectionButton button, AssetType assetType, bool set
             {
                 clearButton.transform.SetAsFirstSibling();
             }
-            var assetData = new PartnerAsset { Id = "0", AssetType = assetType };
+            var assetData = new PartnerAsset { Id = "", AssetType = assetType };
             clearButton.AddListener(() => OnAssetSelected?.Invoke(assetData));
             clearButton.AddListener(() => SetButtonSelected(clearButton.transform));
         }