Enhancement

Create a GUI for ZHorse. The GUI should :

• Be able to replace any command but not necessarily do so. For example, the list of claimed horses should be displayed in the GUI and not in the chat.
• Convert user inputs into ZHorse commands.
• Be de-activable from the config.
• Be called by the command /zhorse.

To be determined :

• Whether the GUI should be a separate plugin or a built-in feature of ZHorse.
• Whether the inputs of the GUI should execute the related command directly or prepare it in the chat for manual sending.