Does my trim/small bud have to be dried before I make canna butter?

I'm not 100% sure, but I would suggest that you dry it first. The trichomes will fall off the trim easier, plus the chlorophyl and whatnot will mostly have drained...you don't want it making your butter taste bad.

There are quick ways of drying it, just don't go too hot and burn the THC. I like to use a dehydrator on 95F. It doesn't get hot, and the airflow shortens my drying time from 4-6 days to 24 hours. I only do this if I have to; I usually let it properly dry.

I would not do that. You need to cure the trim for 2 weeks after the harvest to allow the THC and CBD to completely convert from sugar to their full chemical fullness. It will work, but the quality of the product will not be as good. Fast drying without allowing the cure leads to harsh smoking too because of the sugars that still are left.
WaWo