Editor’s note: Sign up for Unlocking the World, CNN Travel’s weekly newsletter . Get news about destinations, plus the latest in aviation, food and drink, and where to stay. CNN  —  In the early 1840s, Queen Victoria became the first British monarch to travel by train in her own dedicated royal saloons, but more than 180 years later, King Charles III looks set to oversee an end to this noble tradition. The current British royal train, decked out in its rich claret livery, will be decommissioned