Refactors cinematics. (#30888)

* Cinematic  refactor p1

* Refactors cinematics & related fixes

* Fix and cleanup

* Fixes survivor gibbing.

* qdel_null

code/modules/admin/verbs/cinematic.dm

@@ -1,18 +1,11 @@
-/client/proc/cinematic(cinematic as anything in list("explosion",null))
+/client/proc/cinematic()
 	set name = "cinematic"
 	set category = "Fun"
 	set desc = "Shows a cinematic."	// Intended for testing but I thought it might be nice for events on the rare occasion Feel free to comment it out if it's not wanted.
 	set hidden = 1
 	if(!SSticker)
 		return
-	switch(cinematic)
-		if("explosion")
-			var/parameter = input(src,"station_missed = ?","Enter Parameter",0) as num
-			var/override
-			switch(parameter)
-				if(1)
-					override = input(src,"mode = ?","Enter Parameter",null) as anything in list("nuclear emergency","gang war","fake","no override")
-				if(0)
-					override = input(src,"mode = ?","Enter Parameter",null) as anything in list("blob","nuclear emergency","AI malfunction","no override")
-			SSticker.station_explosion_cinematic(parameter,override)
-	return
+
+	var/datum/cinematic/choice = input(src,"Cinematic","Choose",null) as anything in subtypesof(/datum/cinematic)
+	if(choice)
+		Cinematic(initial(choice.id),world,null)