President Joe Biden signed a bill aimed at forcing a change of ownership of popular video-sharing app TikTok into law on Wednesday after the US Senate approved it by a large margin. The law threatens TikTok with being banned from US app stores if it is still owned by the Chinese-based ByteDance Group in a year’s time. Tiktok intends to challenge the law in court. The Senate approved the bill late Tuesday with 79 votes in the 100-seat upper chamber. In the United States, ByteDance is seen across party lines as a Chinese company that must bow to the will of the Chinese Communist Party. There are…