[#3] Use Pterodactyl instead of Multicraft

Dylan Wilson requested to merge issue-3 into main

Associated issue: #3 (closed).

Facing increased issues with Multicraft, Pterodactyl will be used instead. This is a modern replacement for Multicraft which supports more types of game servers, SFTP and runs each server in its own Docker container (allowing for easier management of Java versions etc.).

The Pterodactyl daemon installed in these states is called Wings.

Closes #3 (closed).

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