Add Icon propertie in FurnitureBase and FurnitureVariant

Inventory/FurnitureBase.cs

@@ -38,6 +38,10 @@ namespace Core.Adapters.Lib
         [BsonElement("variantIds")]
         [JsonPropertyName("variantIds")]
         public List<string> VariantIds { get; set; } = new();
+
+        [BsonElement("icon")]
+        [JsonPropertyName("icon")]
+        public string Icon { get; set; } = null!;
     }
 
     public class Dimensions