Adds a new Quirk: Unblinking (#3735)

## About The Pull Request

This adds a zero-cost neutral quirk that prevents the holder from
blinking at all without any mechanical downsides.

## Why It's Good For The Game

The tg upstream added automated blinking which just doesn't mesh well
with customization options. The Fluoride Stare quirk gave far too large
a mechanical downside for what could've otherwise been a flavor change.
EDIT: ~~This change now actually DOES replace the Fluoride Stare quirk,
per request of the maintainers.~~
EDIT 2: It doesn't replace Fluoride Stare, wanna experience the torture
of needing to use eye drops every 60 seconds? Have at thee, a separate
PR to remove this later down the line still isn't impossible though.
I'm tired boss.

## Proof Of Testing

Emissive eyes also work fine from our testing.

<details>
<summary>Screenshots/Videos</summary>


![image](https://github.com/user-attachments/assets/a0fe7ae4-f339-44a5-94e4-ccf90e9532fe)

![Screenshot 2025-05-07
042635](https://github.com/user-attachments/assets/41418554-d68b-4697-8f12-970afb8517f3)

</details>

## Changelog

🆑 AstrumLernaean
add: Added a new neutral quirk: Unblinking. Prevents blinking; now with
100% less 'going blind' involved.
/🆑

---------

Co-authored-by: Roxy <75404941+TealSeer@users.noreply.github.com>

code/controllers/subsystem/processing/quirks.dm

@@ -48,6 +48,7 @@ GLOBAL_LIST_INIT_TYPED(quirk_blacklist, /list/datum/quirk, list(
 	list(/datum/quirk/dominant_aura, /datum/quirk/well_trained),
 	list(/datum/quirk/equipping/entombed, /datum/quirk/equipping/seamless_clothes),
 	list(/datum/quirk/equipping/entombed, /datum/quirk/badback),
+	list(/datum/quirk/unblinking, /datum/quirk/item_quirk/fluoride_stare),
 	//BUBBER EDIT ADDITION END
 ))