Refactors Sloths into Basic Mobs (#78752)

## About The Pull Request

Hey there,

This just refactors sloths to the basic mob framework. Nothing new
should be added beyond them seeming a bit more sluggish and being a bit
smarter about the fights they pick/running away.
## Why It's Good For The Game

Three more subtypes off the list, we are now sub-200 simple animals left
to refactor. If people want to play catch with their sloth it should be
much easier to fit that in now.
## Changelog
🆑
refactor: Sloths are now basic mobs, however their overall sluggish
behavior shouldn't have changed much- let us know if anything is broken.
/🆑

code/datums/ai/basic_mobs/basic_subtrees/climb_tree.dm

@@ -1,4 +1,5 @@
 /datum/ai_planning_subtree/climb_trees
+	operational_datums = list(/datum/component/tree_climber)
 	///chance to climb a tree
 	var/climb_chance = 35