TikTok Shop, the Bytedance Ltd.-owned social media giant’s e-commerce feature, saw its sales outdo competition in the US just before President Donald Trump’s disruptive trade actions.The popular video app, which brought in-app shopping to its millions of American users in 2023, continued to surpass Shein and PDD Holdings Inc.’s Temu in January, according to Bloomberg Second Measure, which analyzes credit and debit card data. That builds on its 2024 performance, when it saw faster sales growth th...