fix(enterchat): changing d2 open character statstring to just the product

Author: richard-pianka

src/Atlasd/Battlenet/Protocols/Game/Messages/SID_ENTERCHAT.cs

@@ -66,6 +66,11 @@ public override bool Invoke(MessageContext context)
                         var statstring = context.Arguments.ContainsKey("statstring") ? (byte[])context.Arguments["statstring"] : gameState.Statstring;
                         var accountName = gameState.Username;
 
+                        if (Product.IsDiabloII(gameState.Product))
+                        {
+                            statstring = Product.ToByteArray(gameState.Product);
+                        }
+
                         // Do not use client-provided statstring if config.battlenet.emulation.statstring_updates is not enabled for this product.
                         // Blizzard servers allowed statstring updates for Diablo, Diablo II (changing characters), Warcraft III (changing icons), and Shareware variants.
                         if (!GameState.CanStatstringUpdate(gameState.Product) || statstring.Length == 0) statstring = gameState.GenerateStatstring();