Function resolve_nested_maps 

pub fn resolve_nested_maps(
    style: Style,
    interact_state: &InteractionState,
    screen_size_bp: ScreenSizeBp,
    classes: &[StyleClassRef],
    inherited_context: &Style,
    class_context: &Style,
) -> (Style, bool)

the bool in the return is a classes_applied flag. if a new class has been applied, we need to do a request_style_recursive