Introducing personal join domains

It is now possible to invite players to the server using a personalized domain, formatted as username.earthmc.net. Players joining through your personal domain address will automatically be added to your town.

Personal join domains only work for townless players, public open towns (/t toggle open) and players who are not outlawed. Personal join domains are availabe to all players, regardless of rank.

For example, the player Veyronity could invite friends to join using veyronity.earthmc.net instead of join.earthmc.net. This way, his friends would be added to his town, Normandy, rather than being randomly teleported on the map.

This makes onboarding new players easier, while rewarding those who promote the server with new residents. Additional rewards may be introduced in the future.