[MDB Ignore] Updates visuals for the loadout menu (#90399)

## About The Pull Request

Improves how the loadout menu looks by switching it to the new
ImageButton component, converting recolorable/reskinnable to use icons
with tooltips, and allowing items within a category to be grouped up
together (only used by pocket items as of now)

<details>

<summary>How it looks:</summary>


![image](https://github.com/user-attachments/assets/3ed434cc-5caf-4cd5-b289-76f1946282cd)


![image](https://github.com/user-attachments/assets/bb33e6a4-75c4-4eb5-8e83-2ed9f6853e64)

</details>

Monocles have been made prescription, and prescription, contains pens,
hair color, and other misc tags have been removed.



<details>

<summary>Additionally, plushies now have better baked-in sprites for
loadouts, with randomized lizard plushie receiving a coat of rainbow
paint in place of the removed tooltip.</summary>


![image](https://github.com/user-attachments/assets/ea3124ae-53aa-4eb5-bb27-bde6140b4222)

</details>

## Why It's Good For The Game

Blue button make it hard to figure out details on certain items, and
tiny grey text is borderline unreadable. Also our pocket items category
is horribly bloated.

## Changelog
🆑
qol: Redesigned the loadout UI
balance: Monocles now work as prescription glasses
image: Loadout plushies no longer use mapper previews for their images
/🆑

code/controllers/subsystem/assets.dm

@@ -24,8 +24,6 @@ SUBSYSTEM_DEF(assets)
 		transport = newtransport
 	transport.Load()
 
-
-
 /datum/controller/subsystem/assets/Initialize()
 	for(var/type in typesof(/datum/asset))
 		var/datum/asset/A = type