Folders using default "Action" type for their temporary entries interferes with PF2E Compendium Browser

[tyrielv]

This module creates a "temporary" document using the first valid type from the current system. In PF2E for "Item" entities, that type is "Action."

PF2E has a custom compendium browser built-in, which supports adding custom compendiums. However, it only allows one "item" type per compendium is used, and "Action" is the first in the list. If a compendium contains nothing but Feats, but the Feats are in folders, then it shows up under the "Actions" section in PF2E Compendium Browser -> Load Packs, and only the temporary items show up in the browser instead of the intended feats.

(Related issue in PF2E repo)