FixPlayerName 玩家名称修复

Check player names every 30 seconds and correct any incorrectly displayed or "unknown" names to their proper ones.

每隔30秒检查一遍玩家名称，并将显示错误以及unknow的名称修复为正确的名称。

Fixed the issue where names and avatars were displayed incorrectly in spectator mode.

修复观战视角下名称以及头像显示错误的问题。