TikTok said it would "go dark" this month if the Supreme Court didn't extend a divestment deadline.Its users would likely stop seeing videos after January 19, and the app would leave app stores.The company is arguing its case Friday against a divest-or-ban law before the Supreme Court.TikTok said it would "go dark" in the US later this month if the Supreme Court failed to extend a January 19 divestment deadline set by a divest-or-ban law.During oral arguments before the Supreme Court on Friday, ...