Explodes device.dmi (#80025)

## About The Pull Request

I woke up today and thought 'what would be easy thing to do today so I
can say I've done something?'. Then I remembered I saw several gangtool
usages the time I split radio up, and I could remedy those. 7 hours
later, device.dmi is split in a folder of its own, and I've also given
unique sprites to door remotes and landing desginators.


## Why It's Good For The Game

The device.dmi was kind of a mess.

## Changelog

🆑
/🆑

code/modules/assembly/assembly.dm

@@ -2,7 +2,7 @@
 /obj/item/assembly
 	name = "assembly"
 	desc = "A small electronic device that should never exist."
-	icon = 'icons/obj/assemblies/new_assemblies.dmi'
+	icon = 'icons/obj/devices/new_assemblies.dmi'
 	icon_state = ""
 	obj_flags = CONDUCTS_ELECTRICITY
 	w_class = WEIGHT_CLASS_SMALL

code/modules/assembly/flash.dm

@@ -3,6 +3,7 @@
 /obj/item/assembly/flash
 	name = "flash"
 	desc = "A powerful and versatile flashbulb device, with applications ranging from disorienting attackers to acting as visual receptors in robot production."
+	icon = 'icons/obj/devices/flash.dmi'
 	icon_state = "flash"
 	inhand_icon_state = "flashtool"
 	lefthand_file = 'icons/mob/inhands/equipment/security_lefthand.dmi'
@@ -296,7 +297,6 @@
 /obj/item/assembly/flash/memorizer
 	name = "memorizer"
 	desc = "If you see this, you're not likely to remember it any time soon."
-	icon = 'icons/obj/device.dmi'
 	icon_state = "memorizer"
 	inhand_icon_state = "nullrod"
 	lefthand_file = 'icons/mob/inhands/weapons/melee_lefthand.dmi'
@@ -342,7 +342,7 @@
 
 /obj/item/assembly/flash/hypnotic
 	desc = "A modified flash device, programmed to emit a sequence of subliminal flashes that can send a vulnerable target into a hypnotic trance."
-	flashing_overlay = "flash-hypno"
+	flashing_overlay = "mindflash"
 	light_color = LIGHT_COLOR_PINK
 	cooldown = 20
 

code/modules/assembly/holder.dm

@@ -1,6 +1,6 @@
 /obj/item/assembly_holder
 	name = "Assembly"
-	icon = 'icons/obj/assemblies/new_assemblies.dmi'
+	icon = 'icons/obj/devices/new_assemblies.dmi'
 	icon_state = "assembly_holder"
 	inhand_icon_state = "assembly"
 	lefthand_file = 'icons/mob/inhands/items/devices_lefthand.dmi'

code/modules/assembly/shock_kit.dm

@@ -1,7 +1,7 @@
 /obj/item/assembly/shock_kit
 	name = "electrohelmet assembly"
 	desc = "This appears to be made from both an electropack and a helmet."
-	icon = 'icons/obj/assemblies/assemblies.dmi'
+	icon = 'icons/obj/devices/assemblies.dmi'
 	icon_state = "shock_kit"
 	var/obj/item/clothing/head/helmet/helmet_part = null
 	var/obj/item/electropack/electropack_part = null