Adds a examine tag for reskinnable items. (#93638)

## About The Pull Request

<img width="552" height="117" alt="image"
src="https://github.com/user-attachments/assets/dbd3f63f-9977-4973-b6c0-a169776f53e0"
/>

## Why It's Good For The Game

Things should be known. Thanks to Tonty for handholding me through this.

## Changelog
🆑 
qol: Reskinnable items now have a 
/🆑

code/game/objects/items.dm

@@ -458,6 +458,9 @@
 	else if (siemens_coefficient <= 0.5)
 		.["partially insulated"] = "It is made from a poor insulator that will dampen (but not fully block) electric shocks passing through it."
 
+	if(LAZYLEN(unique_reskin) && !current_skin)
+		.["reskinnable"] = "This item is able to be reskinned! Alt-Click to do so!"
+
 /obj/item/examine_descriptor(mob/user)
 	return "item"