alias thanks -> thank_you

Posted under Tags

BUR #9637 has been approved by @NWF_Renim.

create alias thanks -> thank_you

Utility alias. It's short enough that someone can type it before the autocomplete kicks in without realizing we have thank you.

It used to be a separate tag because of this a few years ago until I merged the two tags, but I didn't ask for an alias back then for some reason.