Deathmatch modifiers (#81673)

## About The Pull Request
This PR adds the base to simple modifiers that the host can select to
make the minigame ~~worse~~ more entertaining for everyone.

Here's the screenshot of the UI (without a few modifiers I added later):

![immagine](https://github.com/tgstation/tgstation/assets/42542238/95bb9414-d93b-4c45-ab8a-ed8f28856018)

## Why It's Good For The Game
I've seen this minigame is frankly popular lately, so I thought I could
contribute to it.

## Changelog

🆑
add: Added 20+ modifiers to the deathmatch minigame, which can be
enabled by the host.
/🆑

code/modules/mob/living/basic/space_fauna/carp/carp.dm

@@ -95,10 +95,10 @@
 	AddComponent(/datum/component/aggro_emote, emote_list = string_list(list("gnashes")))
 	AddComponent(/datum/component/regenerator, outline_colour = regenerate_colour)
 	if (tamer)
-		on_tamed(tamer, feedback = FALSE)
+		tamed(tamer, feedback = FALSE)
 		befriend(tamer)
 	else
-		AddComponent(/datum/component/tameable, food_types = list(/obj/item/food/meat), tame_chance = 10, bonus_tame_chance = 5, after_tame = CALLBACK(src, PROC_REF(on_tamed)))
+		AddComponent(/datum/component/tameable, food_types = list(/obj/item/food/meat), tame_chance = 10, bonus_tame_chance = 5)
 
 	teleport = new(src)
 	teleport.Grant(src)
@@ -119,7 +119,7 @@
 	set_greyscale(colors = list(pick_weight(GLOB.carp_colors)))
 
 /// Called when another mob has forged a bond of friendship with this one, passed the taming mob as 'tamer'
-/mob/living/basic/carp/proc/on_tamed(mob/tamer, feedback = TRUE)
+/mob/living/basic/carp/tamed(mob/living/tamer, atom/food, feedback = TRUE)
 	buckle_lying = 0
 	AddElement(/datum/element/ridable, ridable_data)
 	AddComponent(/datum/component/obeys_commands, tamed_commands)