[MIRROR] Refactors Ant into Basic Mob [MDB IGNORE] (#21601)

* Refactors Ant into Basic Mob (#75662)

## About The Pull Request

On the tin. No new fancy AI wheels or anything, just a simple port.
## Why It's Good For The Game

Knocks another one off the list, just really light stuff. They're a bit
smarter now too, I think the intention was them for them to be pet-like
as well (according to the code). Should be really rather easy to give
them the pet-like behaviors and elements if someone really wants to in
the future, just sorta paving the way for more work to be done to make
mobs more intricate/interesting.
## Changelog
🆑
refactor: Giant ants are now more capable of distinguishing friend and
foe.
/🆑

* Refactors Ant into Basic Mob

---------

Co-authored-by: san7890 <the@san7890.com>

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

@@ -157,3 +157,9 @@
 	speak = list("gnashes.", "growls lowly.", "snarls.")
 	emote_hear = list("gnashes.")
 	emote_see = list("salivates.")
+
+/datum/ai_planning_subtree/random_speech/ant
+	speech_chance = 1
+	emote_hear = list("buzzes.", "clacks.")
+	emote_see = list("shakes their head.", "twitches their antennae.")
+	speak = list("BZZZZT!", "CHTCHTCHT!", "Bzzz", "ChtChtCht")