Consider Usage of BanID instead of Ban

[Brandin]

Hello,

In case a user is offline, their ban will not be recorded by using the ban command, we should consider the usage of the banid command with the users name if available. I'll do a PR later if I'm able to and you're okay with this change.

https://github.com/dassjosh/Rust.DiscordSignLogger/blob/main/DiscordSignLogger.cs#L1420

Ref: https://www.corrosionhour.com/rust-ban-command/