Non-poisonous and poisonous items get stacked together in the eat menu

### Describe the bug

vs

### Attach save file

n/a

### Steps to reproduce

1. Forage and find either wild roots or shrooms which have both `FORAGE_POISON`.
2. Make sure some of them are poisonous.
3. Try to eat them.
4. They get batched together.

### Expected behavior

They would be separate like in the inventory screen (second screenshot).

### Screenshots

_No response_

### Versions and configuration

- OS: Linux
- OS Version: LSB Version: n/a; Distributor ID: Arch; Description: Arch Linux; Release: rolling; Codename: n/a;
- Game Version: cdda-experimental-2024-05-11-0903 d78e605 [64-bit]
- Graphics Version: Tiles
- Game Language: System language []
- Mods loaded: [
Dark Days Ahead [dda],
Disable NPC Needs [no_npc_food],
Portal Storms Ignore NPCs [personal_portal_storms],
Slowdown Fungal Growth [no_fungal_growth],
Innawood [innawood]
]

### Additional context

Maybe related to #24981

Start by reproducing the issue with forage items that have FORAGE_POISON, then compare grouping in the eat menu with the inventory screen. Trace how poisonous and non-poisonous items are batched, and verify that they appear as separate groups in the eat menu.

Written by the indexing model from the issue text.