alias grubs -> larva

BUR #18399 has been approved by @nonamethanks.

create alias grubs -> larva

grubs are another name for larva

Could be misinterpreted as the food.

And by that I mean rename and depricate grub.

For food it's always been singular without the s. Grubs with an s has always been used to refer to larva, so is renaming it to an ambiguous term just to deprecate it necessary? No one is actually using the singular term grub on the site.

The bulk update request #18399 (forum #248139) has been approved by @nonamethanks.