Update0.26.0

1、去除主界面的无效链接按钮
2、防御方如果是城市,则不受单一兵种惩罚

1、去除主界面的無效鏈接按鈕
2、防禦方如果是城市,則不受單一兵種懲罰

1. Remove the invalid link button on the main interface
2. If the defense is a city, it is not subject to a single class penalty