Mark Zuckerberg, CEO of Meta Platforms Inc., arrives for the Meta Connect event in Menlo Park, California, on Sept. 25, 2024.David Paul Morris | Bloomberg | Getty ImagesMeta AI will soon become one of the social media company's standalone apps, joining Facebook, Instagram and WhatsApp, CNBC has learned.The company intends to debut a Meta AI standalone app during the second quarter, according to people familiar with the matter. It marks a major step in Meta CEO Mark Zuckerberg's plans to make his...