This is a minor update, and it adds 2 new options to the map config, which can be used to specify how Cartographer renders the chunks around the player. One of the options specifies how far it renders, in blocks. So a render distance of 1000 will render almost the entire map when it is zoomed out. There is also a square render feature that changes how the map render is shaped. It can either be rendered as a square with the length being the render distance, or as a circle with the radius being the render distance.
I have also added a command, '/cartographer give <player> <mapname> <slot>' which can be used to give players maps with commands.