Add billboard display board to mobile live broadcast room

Each platform has its own platform rules, such as Douyin. One of the rules in Douyin is that other logos cannot be displayed in the live broadcast room. , or other brand logos, etc. If you display them, it is equivalent to advertising for other brands. This is not allowed by the Douyin platform, so if certain logos or brands appear in your live broadcast room, Then it is a violation, which can range from closing the live broadcast room to banning the live broadcast room.