She left her Indian Ocean island home at the urging of Chelsea’s now-manager – now they’re working together again in pursuit of a Stamford Bridge legacy It is rare to see Melvine Malard without a grin and she has a mountain of reasons to keep it that way. A wedding in June, a big-money move to Chelsea, a Ballon d’Or nomination and a first taste of a fiery London derby against Arsenal at Stamford Bridge on Sunday. The French forward is loving life and the personality behind the smile that instan…