refactor(cmdroute)!: change data to resp

[Serpentiel]

changes cmdroute to work with *api.InteractionResponse instead of *api.InteractionResponseData

this would allow to return modals via command interactions done through cmdroute

this PR is a breaking change

[diamondburned]

I think it would be better if we introduce a new non-breaking API that apps can use to implement this when they need to instead of breaking the current API.

I'll have to look into this soon.

[Serpentiel]

to make it non-breaking, I believe one has to modify this place:

arikawa/api/cmdroute/router.go

Lines 123 to 127 in 181dcb1

	found, ok := r.findHandler(ev, discord.CommandInteractionOption{
	Type: cmdType,
	Name: data.Name,
	Options: data.Options,
	})

and introduce a new type of handler which is used there then