bunch of inits without return and a few easy new to init (#16815)

* bunch of inits withou return

* Update cans.dm

* bunch of New to Init

* fix that

* .

* .

* move black hole to init and callbacks

* .

* oups, should not do that late at night

* some more without returns

code/modules/mining/abandonedcrates_vr.dm

@@ -170,6 +170,6 @@
 	)
 
 /obj/item/storage/backpack/sport/hyd/catchemall/Initialize() //gotta have your starter 'mon too (or an improved way to catch one)
-	..()
+	. = ..()
 	var/path = pick(subtypesof(/obj/item/capture_crystal))
 	contents += new path()