It is Monday morning and the last time we left home this early on a weekday wearing proper clothes was for a September stay in the Cotswolds, when the prospect of a car ride culminating in 48 hours to languish in grey fluffy robes called for a costume change out of 2020's WFH wear.   Today the destination is Fitzrovia's Charlotte Street, London’s most respected foodie thoroughfare. We're wearing actual make up. We're determined to Lunch (noun). The excitement is real.   Chef and restauranteur, Nico Simeone, welcomes us to Six by Nico, his first London restaurant and seven...