[Feature]: Enable crossplay for Valheim

[glowacki-dev]

User story

As a server owner, I want to be able to enable crossplay so that the server is accessible for players using non-steam game versions

Game

Valheim

Linux distro

No response

Command

command: start

Further information

Crossplay seems to work fine with docker images of Valheim server. https://www.reddit.com/r/valheim/comments/xshlyk/dedicated_server_on_linux_crossplay_switch_not/ this thread describes some dependencies that need to be installed to get this feature working on linux-based servers