Stacks check for invalid amounts (#91656)

## About The Pull Request
Alleviates #91603

As in it does not fix it because i have not been able to reproduce it.
It now checks for invalid values and defaults to `amount`(which is 1)
during `Initialize()` and not null so we don't have to pass the number
`1` when creating a single sheet.
 
A stack trace is thrown for <= 0 sheet amounts so we can debug & fix
stuff

## Changelog
🆑
code: stacks error on invalid amounts, removed manual passing of number
`1` when creating a single stack in many cases
/🆑

code/modules/modular_computers/file_system/programs/arcade.dm

@@ -168,7 +168,7 @@
 			else
 				computer.visible_message(span_notice("\The [computer] prints out paper."))
 				if(ticket_count >= 1)
-					new /obj/item/stack/arcadeticket((get_turf(computer)), 1)
+					new /obj/item/stack/arcadeticket((get_turf(computer)))
 					to_chat(gamer, span_notice("[computer] dispenses a ticket!"))
 					ticket_count -= 1
 					computer.stored_paper -= 1