[Suggestion] Make it so it's possible to have account loaded in the config file

[qfoxb]

It would obviously not work on a public server, but being able to set something in config to login with pre-saved credentials for a privately run geyserconnect instance would be convenient.

[rtm516]

This is supported in Geyser which intheory should have worked in the new GeyserConnect builds. But due to it causing some odd behaviour with connecting I disable the feature on startup.

Leaving this issue open incase the fix is worked out further down the line.