fix(Core/Chat): Fix muteTime for players that were muted when offline.

src/server/game/Server/WorldSocket.cpp

@@ -540,6 +540,17 @@ void WorldSocket::HandleAuthSessionCallback(std::shared_ptr<AuthSession> authSes
         }
     }
 
+    //! Negative mutetime indicates amount of minutes to be muted effective on next login - which is now.
+    if (account.MuteTime < 0)
+    {
+        account.MuteTime = time(nullptr) + llabs(account.MuteTime);
+
+        auto* stmt = LoginDatabase.GetPreparedStatement(LOGIN_UPD_MUTE_TIME_LOGIN);
+        stmt->setInt64(0, account.MuteTime);
+        stmt->setUInt32(1, account.Id);
+        LoginDatabase.Execute(stmt);
+    }
+
     if (account.IsBanned)
     {
         SendAuthResponseError(AUTH_BANNED);