WeChat continues to advance its shopping ambitions as the social networking app turns 10 years old. The Chinese messenger facilitated 1.6 trillion yuan (close to $250 billion) in annual transactions through its “mini programs,” third-party services that run on the super app that allow users to buy clothes, order food, hail taxis and more. That is double the value of transactions on WeChat’s mini programs in 2019, the networking giant announced at its annual conference for business partners and ecosystem developers, which normally takes place in its home city of…