Add saveMinecraft into the server status

[FxMorin]

You should display a small icon next to servers that support this. So show that no chat report is used on the server, should be easy to add the icon with what ive done

[Aizistral]

Also, I think this integration can be made more compatible by using a mixin to add that boolean field and implement some special interface specifying getter/setter methods for it on vanilla's ServerData, instead of replacing the object with a custom extension.

[Aizistral]

Closed in favor of more clean and up-to-date implementation in #169.