Is your feature request related to a problem? Please describe.
There happen to be a good amount of white+ items that are vendor-able and not worth putting on the AH, it would be great to auto-vendor these!

Describe the solution you'd like
Check the Auctioneer recommendation for an item, and if it is recommended to Vendor the item instead of Auction it, sell the item automatically.

Describe alternatives you've considered
N/A

Additional context
It should be toggle-able so it doesn't auto scrap whites people might want.

Auctioneer's recommendation data can often be unreliable, a much better indicator is the region median price from The Undermine Journal. These price statistics are calculated across all the servers in the region and are updated in-game two times per week, via addon updates published on Curseforge/Twitch
https://www.curseforge.com/wow/addons/undermine-journal/files

e.g. if the region median price of the item is less than around 200..300% of the sell-to-vendor price, then it's probably better to just sell it to a vendor than to waste time selling it on the AH.
(make that percentage point user-configurable too)