Donald Trump on Friday afternoon extended by 75 days a deadline for the Chinese technology company ByteDance to sell US assets of the popular short-video app TikTok to a non-Chinese buyer or face a ban that was supposed to take effect in January under a 2024 law. “The deal requires more work to ensure all necessary approvals are signed,” the US president said, explaining why he was extending the deadline he set in January that was supposed to expire on Saturday. “We hope to continue working in good faith with China, who I understand is not very happy about our…