Meet Fondeadora, a fintech startup based in Mexico City that wants to build a full-stack neobank. The company just raised a $14 million Series A round led by Gradient Ventures, Google’s AI-focused venture fund. Founded in 2018, the company already manages 150,000 accounts and is adding $20 million in deposits every month. Mexico represents a massive opportunity for a challenger bank as many people still rely on cash for most of their transactions. Given that all countries are progressively switching to card and digital payments, it seems like the right…