Adds PlasMAX helmet - inspired by plasmaman gear (#5087)

## About The Pull Request

New helmet with sprites and all. I did make sprite for welding visor but
plasmaman helmet code is a mess and I can't give it new file location to
pull the visor sprite from.

It's available in loadouts.

I do want to make colorable version of this but I don't have the energy
to do it now.

Update: I've also tweaked original plasmaman helmet code so you can
actually add welding and light sprites that are not default ones. This
also fixed the two plasmaman donator items from Skyrat.

This also includes smiley face working

## Why It's Good For The Game

Fashion! Plasmaman helmet that actually looks like it could fit a snout
in it.

## Proof Of Testing

<img width="67" height="68" alt="image"
src="https://github.com/user-attachments/assets/0fa40d15-0c98-4739-a9c0-655ce2c031db"
/>
<img width="68" height="66" alt="image"
src="https://github.com/user-attachments/assets/070dd3a1-8b97-465f-902f-962cbfbb21e1"
/>
<img width="68" height="68" alt="image"
src="https://github.com/user-attachments/assets/7982e256-3e5b-4798-ab7e-0bb9be7a5028"
/>
<img width="350" height="309" alt="image"
src="https://github.com/user-attachments/assets/417afbc0-1819-4816-b3c5-b9b428a401d6"
/>
<img width="215" height="88" alt="image"
src="https://github.com/user-attachments/assets/8fe7d635-37c9-482c-adcf-70ea2d1f5ade"
/>

</details>

## Changelog

🆑
add: Added new PlasMAX helmet to loadout
/🆑

code/modules/clothing/spacesuits/plasmamen.dm

@@ -181,12 +181,16 @@
 /obj/item/clothing/head/helmet/space/plasmaman/worn_overlays(mutable_appearance/standing, isinhands)
 	. = ..()
 	if(!isinhands && !up)
-		. += mutable_appearance('icons/mob/clothing/head/plasmaman_head.dmi', visor_icon)
+		// BUBBER EDIT START
+		. += mutable_appearance(worn_icon, visor_icon)
+		// BUBBER EDIT END
 
 /obj/item/clothing/head/helmet/space/plasmaman/separate_worn_overlays(mutable_appearance/standing, mutable_appearance/draw_target, isinhands = FALSE, icon_file)
 	. = ..()
 	if(!isinhands && smile)
-		var/mutable_appearance/smiley = mutable_appearance('icons/mob/clothing/head/plasmaman_head.dmi', smile_state)
+		// BUBBER EDIT START
+		var/mutable_appearance/smiley = mutable_appearance(worn_icon, smile_state)
+		// BUBBER EDIT END
 		smiley.color = smile_color
 		. += smiley
 
@@ -206,6 +210,10 @@
 		if(!up)
 			to_chat(user, span_notice("Your helmet's torch can't pass through your welding visor!"))
 			set_light_on(FALSE)
+			// BUBBER EDIT ADDITION START
+			helmet_on = FALSE
+			update_appearance()
+			// BUBBER EDIT ADDITION END
 		else
 			set_light_on(TRUE)
 	else

modular_skyrat/modules/customization/modules/clothing/~donator/donator_clothing.dm

@@ -864,6 +864,7 @@
 	icon = 'modular_skyrat/master_files/icons/donator/obj/clothing/hats.dmi'
 	worn_icon = 'modular_skyrat/master_files/icons/donator/mob/clothing/head.dmi'
 	icon_state = "emissionhelm"
+	visor_icon = "emissionhelm-envisor"
 
 // Donation reward for CandleJax
 /obj/item/clothing/head/helmet/space/plasmaman/candlejax2
@@ -872,6 +873,7 @@
 	icon = 'modular_skyrat/master_files/icons/donator/obj/clothing/hats.dmi'
 	worn_icon = 'modular_skyrat/master_files/icons/donator/mob/clothing/head.dmi'
 	icon_state = "anahead"
+	visor_icon = "anahead-envisor"
 
 // Donation reward for CandleJax
 /obj/item/clothing/under/plasmaman/candlejax

modular_zubbers/code/modules/clothing/head/helmet.dm

@@ -685,3 +685,12 @@
 /obj/item/clothing/head/hooded/ablative
 	// new teshari sprites
 	worn_icon_teshari = 'modular_zubbers/icons/mob/clothing/head/helmet_teshari.dmi'
+
+/obj/item/clothing/head/helmet/space/plasmaman/plasmax_black
+	name = "plasMAX envirosuit helmet"
+	desc = "Extra large version of plasmaman helmet, made to fit those with non-humanoid skulls."
+	icon = 'modular_zubbers/icons/obj/clothing/head/helmet.dmi'
+	worn_icon = 'modular_zubbers/icons/mob/clothing/head/helmet.dmi'
+	icon_state = "plasmax_black"
+	light_color = "#f399ff"
+	visor_icon = "plasmax_black-envisor"

modular_zubbers/code/modules/loadout/categories/heads.dm

@@ -181,3 +181,7 @@
 	name = "Imperial Police Helmet"
 	item_path = /obj/item/clothing/head/helmet/nri_police
 	restricted_roles = list(JOB_CUSTOMS_AGENT)
+
+/datum/loadout_item/head/soft/plasmax_black
+	name = "PlasMAX Envirosuit Helmet"
+	item_path = /obj/item/clothing/head/helmet/space/plasmaman/plasmax_black