Making items searchable by base item type

[DimaVartanian]

The item display + search only works by the item's actual name, not its base type.

Example: "Bloodletter Gladius"

Gladius doesn't appear in the list (less important), but you also can't find Bloodletter by searching for "Gladius"

A common usecase for me is finding an item on the ground but not remembering what it's called before identifying it or whether I've found it before. Would be great to be able to do a quick search without having to identify it first in-game.