Messages to non-# channels are confused for PMs

[Herringway]

It appears that CHANTYPES is ignored and # is hardcoded as the only recognized channel type, leading all messages to be treated as if they were PMs to the user.

https://github.com/ObsidianIRC/ObsidianIRC/blob/948c6005a945f0149982c86ca9868e28ee458ef6/src/lib/ircClient.ts#L1579