Spiders can now be tamed and ridden (#95194)

## About The Pull Request
This lets people ride and tame spiders by feeding them mouse, lizard,
moth, fly, and worm meat. You can only do this when a spider is a
spiderling or young; once it's fully grown, it's no longer possible.

This also refactors some tameable code to use `TRAIT_TAMED` instead of
setting variables on mobs individually.

## Why It's Good For The Game
It looks cool.

<img width="1920" height="1080" alt="dreamseeker_97k7fgzdhv"
src="https://github.com/user-attachments/assets/87d53102-468d-4dd7-b0a7-004f9a98df17"
/>


## Changelog
🆑
add: Spiders can now be tamed and ridden. They eat mouse, lizard, moth,
fly, and worm meat and can only be tamed when they are spiderlings or
young.
code: Refactored tameable code to use TRAIT_TAMED instead of setting
individual variables on each mob.
/🆑

code/modules/mob/living/basic/icemoon/wolf/wolf.dm

@@ -68,6 +68,7 @@
 	AddComponent(/datum/component/tameable, food_types = food_types, tame_chance = 15, bonus_tame_chance = 5)
 
 /mob/living/basic/mining/wolf/tamed(mob/living/tamer, atom/food)
+	. = ..()
 	new /obj/effect/temp_visual/heart(src.loc)
 	// ride wolf, life good
 	AddElement(/datum/element/ridable, /datum/component/riding/creature/wolf)