How do you ensure cross-browser compatibility and accessibility (WCAG) when building new features?
Implement a function that returns browsers supporting every required feature and WCAG criterion. Treat a missing or false capability as unsupported, and return matching browser names in lexicographic order.
Function signature: compatible_browsers(browsers, required_features, required_wcag) Each browser is a dictionary with name, features, and wcag dictionaries. Return a list of strings.
def compatible_browsers(browsers, required_features, required_wcag):