Fix UC outfit images

Oops, I wasn't requesting `bodyId` for item layers, so the check for `layer.bodyId !== "0"` was always true—because it was always `undefined`, even when it should have been `"0"`.

This wasn't an issue on the client, because the client _does_ request `bodyId` for caching item appearances between pets of the same body, and I didn't realize that it needs to be part of this fragment too!

src/shared/getVisibleLayers.js

@@ -99,6 +99,7 @@ export const itemAppearanceFragmentForGetVisibleLayers = gql`
     id
     layers {
       id
+      bodyId
       zone {
         id
         depth