Extend Configure for EventSub Defaults

[BarryCarlyon]

For a user testing eventsub they would have to -F and -s every command

It would be useful for a developer to define a default, potentially via the configure command

So when doing a lot of eventsub testing, a developer doesn't have to specify -F and -s everytime since it's gonna be easy to fatfinger the -s and/or copy paste all the time.

Also nicer for people on shell only to test.

[lleadbet]

Good callout. Definitely something we can look to add in the future.