Baby stoats can become adults (#96491)

## About The Pull Request
Baby stoats can now grow into adult stoats. ive also included kits into
the spawn pool of maints, (the overall chance of running into a stoat
whether adult/baby remains the same), and you can also now find baby
stoats rummaging through bins. since baby stoats are cute ive made their
growth rates slow so people can enjoy them at their youths for longer.

## Why It's Good For The Game
fixes an oversight.

## Changelog
🆑
fix: baby stoats can now become adults
add: baby stoats are added to the spawn pool of maints, (the overall
chance of running into a stoat whether adult/baby remains the same)
/🆑

code/modules/mob/living/basic/stoats/stoat.dm

@@ -65,15 +65,15 @@
 		/mob/living/basic/stoat/kit = 100 // Placeholder until we get proper baby stoats
 	)
 	AddComponent(\
-	/datum/component/breed,\
-	can_breed_with = typecacheof(list(/mob/living/basic/stoat)),\
-	baby_paths = baby_paths,\
+		/datum/component/breed,\
+		can_breed_with = typecacheof(list(/mob/living/basic/stoat)),\
+		baby_paths = baby_paths,\
 	)
 
 /mob/living/basic/stoat/kit
 	name = "\improper stoat kit"
 	real_name = "stoat"
-	desc = "They're a stoat kit!"
+	desc = "An apex predator, but friend-shaped, and tiny..."
 	icon_state = "kit_stoat"
 	icon_living = "kit_stoat"
 	icon_dead = "kit_stoat_dead"
@@ -82,3 +82,15 @@
 	ai_controller = /datum/ai_controller/basic_controller/stoat/kit
 	mob_size = MOB_SIZE_SMALL
 	can_breed = FALSE
+
+/mob/living/basic/stoat/kit/Initialize(mapload)
+	. = ..()
+	AddComponent(\
+		/datum/component/growth_and_differentiation,\
+		growth_time = 20 MINUTES,\
+		growth_path = /mob/living/basic/stoat,\
+		growth_probability = 100,\
+		lower_growth_value = 0.5,\
+		upper_growth_value = 1,\
+		signals_to_kill_on = list(COMSIG_MOB_CLIENT_LOGIN),\
+	)