Ports TG cursed katana to replace our cursed katana. (#18757)

* Ports TG cursed katana to replace our cursed katana.

* OH, IT'S JUST A SIMPLE NUMBERS GAME!

* More changes / additions / removals

* unneeded comments

* more things

* Apply suggestions from code review

Co-authored-by: Luc <89928798+lewcc@users.noreply.github.com>

* Update code/__HELPERS/lists.dm

Co-authored-by: Luc <89928798+lewcc@users.noreply.github.com>

* Update code/modules/mining/lavaland/necropolis_chests.dm

Co-authored-by: Sirryan2002 <80364400+Sirryan2002@users.noreply.github.com>

* should have commited this too

Co-authored-by: Sirryan2002 <80364400+Sirryan2002@users.noreply.github.com>

* Update code/game/gamemodes/wizard/spellbook.dm

Co-authored-by: Charlie <69320440+hal9000PR@users.noreply.github.com>

* removes status, death signal, turf rename, return true

* sprites my hated

* Hal / steel requested changes

* built in

* quest 1/2

* Extra spacing / github instantly resolved status_effects and did not let me change it.

Co-authored-by: Luc <89928798+lewcc@users.noreply.github.com>
Co-authored-by: Sirryan2002 <80364400+Sirryan2002@users.noreply.github.com>
Co-authored-by: Charlie <69320440+hal9000PR@users.noreply.github.com>

code/game/objects/items/weapons/weaponry.dm

@@ -88,8 +88,6 @@
 	resistance_flags = FIRE_PROOF
 	needs_permit = TRUE
 
-/obj/item/katana/cursed
-	slot_flags = null
 
 /obj/item/katana/suicide_act(mob/user)
 	user.visible_message("<span class='suicide'>[user] is slitting [user.p_their()] stomach open with [src]! It looks like [user.p_theyre()] trying to commit seppuku.</span>")