Removes tablet hard drives entirely (HDD & SSD) (#70678)

* Removes HDD's entirely

HDDs have been removed, though the code for it is still currently lingering as it's required for portable disks. I'll have to find a solution to this one day, but as I am going to sleep, this is a problem for future me.

* starts on removing SSD

* updatepaths and kills off SSD

* update path :D

* Fixes to programs and icons

* Ready for review now

I read over everything I did and tried to fix anything I saw wasn't done right. Hopefully better comments now.

* merge conflict  fix

* can't win them all

* takes viruses into account in paths, fixes it in snowcabin

* Renames the updatepaths

* removes the qdel loop

* accidentally new'ed programs twice

* Fix program's computer var

* destroy pen and disk, dont run kill program on something killed

* more fixes for pens and idle threads

* Fixes PDAs installing apps twice.

* simplifies inserted disk & PDA disk

* fuck's sake

* Use istype instead

* revert

* Revert "revert"

This reverts commit 9ede628c6fef9c7c86417234f6d8ada1ff9e2fef.

* why did that happen

* Update code/modules/modular_computers/computers/item/tablet.dm

* MC_SSD added to master lol

Co-authored-by: ShizCalev <ShizCalev@users.noreply.github.com>

code/modules/modular_computers/file_system/program.dm

@@ -198,6 +198,8 @@
 /datum/computer_file/program/proc/kill_program(forced = FALSE)
 	SHOULD_CALL_PARENT(TRUE)
 	program_state = PROGRAM_STATE_KILLED
+	if(src in computer.idle_threads)
+		computer.idle_threads.Remove(src)
 	if(requires_ntnet)
 		var/obj/item/card/id/ID
 		var/obj/item/computer_hardware/card_slot/card_holder = computer.all_components[MC_CARD]