Financially troubled social media app and TikTok competitor Triller is merging with a Hong Kong financial services company to create a $4 billion company that will have its hands in social video, content generation, wealth management, and fintech.The move could help Triller overcome recent financial difficulties and compete with TikTok at a time when the ByteDance-owned short video app is under pressure from lawmakers in the US, and mired in a licensing dispute with Universal Music Group.Triller...