[MIRROR] Mint can gib obese people again [MDB IGNORE] (#18987)

Mint can gib obese people again (#72970)

## About The Pull Request

Changes minttoxin(a toxin) to mintextract(a food).

## Why It's Good For The Game

Fixes https://github.com/tgstation/tgstation/issues/72969

The chef's mint is intended to gib fat people. Due to
https://github.com/tgstation/tgstation/pull/70764, liver functionality
was reworked so that instead of being purged rapidly, toxin's in a mobs
system with 3 units or less have no effect. Since the chef's mint only
has 2 units of mint toxin, it's intended functionality is impossible
under normal circumstances.

By changing the reagent type from toxin to consumable, it restores the
ability to gib.

## Changelog

🆑
fix: Mint Toxin(a toxin) has been changed to Mint Extract(a food). The
chef's mint can once again gib, fatties beware.
/🆑

Co-authored-by: the-orange-cow <76538214+the-orange-cow@users.noreply.github.com>

code/modules/mining/lavaland/ash_flora.dm

@@ -310,7 +310,7 @@
 	product = /obj/item/food/grown/ash_flora/shavings
 	genes = list(/datum/plant_gene/trait/plant_type/fungal_metabolism, /datum/plant_gene/trait/fire_resistance)
 	growing_icon = 'icons/obj/hydroponics/growing_mushrooms.dmi'
-	reagents_add = list(/datum/reagent/consumable/sugar = 0.06, /datum/reagent/consumable/ethanol = 0.04, /datum/reagent/stabilizing_agent = 0.06, /datum/reagent/toxin/minttoxin = 0.02)
+	reagents_add = list(/datum/reagent/consumable/sugar = 0.06, /datum/reagent/consumable/ethanol = 0.04, /datum/reagent/stabilizing_agent = 0.06, /datum/reagent/consumable/mintextract = 0.02)
 
 /obj/item/seeds/lavaland/porcini
 	name = "pack of porcini mycelium"