Fixes Sealed Food Inheritance (#6059)

<!-- Write **BELOW** The Headers and **ABOVE** The comments else it may
not be viewable. -->
<!-- You can view Contributing.MD for a detailed description of the pull
request process. -->

## About The Pull Request

1. **Fixes Inheritance of Sealed Traits.**

## Why It's Good For The Game

1. _Whoops. When I abstracted these types I forgot to put the traits
that affect the sealed foods on the abstract._

## Changelog

<!-- If your PR modifies aspects of the game that can be concretely
observed by players or admins you should add a changelog. If your change
does NOT meet this description, remove this section. Be sure to properly
mark your PRs to prevent unnecessary GBP loss. You can read up on GBP
and it's effects on PRs in the tgstation guides for contributors. Please
note that maintainers freely reserve the right to remove and add tags
should they deem it appropriate. You can attempt to finagle the system
all you want, but it's best to shoot for clear communication right off
the bat. -->

:cl:
fix: Fixes Inheritance of Sealed Traits.
/:cl:

<!-- Both :cl:'s are required for the changelog to work! You can put
your name to the right of the first :cl: if you want to overwrite your
GitHub username as author ingame. -->
<!-- You can use multiple of the same prefix (they're only used for the
icon ingame) and delete the unneeded ones. Despite some of the tags,
changelogs should generally represent how a player might be affected by
the changes rather than a summary of the PR's contents. -->

code/modules/food/food/snacks.dm

@@ -6784,6 +6784,9 @@ END CITADEL CHANGE */
 /obj/item/reagent_containers/food/snacks/wrapped/candy // Buff 4 >> 8
 	name = "ABSTRACT"
 	desc = "You shouldn't be seeing this. Contact an admin!"
+	sealed = TRUE
+	custom_open_sound = 'sound/effects/pageturn2.ogg'
+	open_message = "You peel back the wrapping!"
 
 /obj/item/reagent_containers/food/snacks/wrapped/candy // Buff 4 >> 8
 	name = "candy"
@@ -6793,9 +6796,6 @@ END CITADEL CHANGE */
 	filling_color = "#7D5F46"
 	nutriment_amt = 3
 	nutriment_desc = list("candy" = 1)
-	sealed = TRUE
-	custom_open_sound = 'sound/effects/pageturn2.ogg'
-	open_message = "You peel back the wrapping!"
 
 /obj/item/reagent_containers/food/snacks/wrapped/candy/Initialize(mapload)
 	. = ..()
@@ -6902,6 +6902,9 @@ END CITADEL CHANGE */
 /obj/item/reagent_containers/food/snacks/bagged // Buff 3 >> 5
 	name = "ABSTRACT"
 	desc = "You shouldn't be seeing this. Contact an admin!"
+	sealed = TRUE
+	custom_open_sound = 'sound/bureaucracy/papercrumple.ogg'
+	open_message = "You pull the package open!"
 
 /obj/item/reagent_containers/food/snacks/bagged/chips // Buff 3 >> 5
 	name = "chips"
@@ -6911,9 +6914,6 @@ END CITADEL CHANGE */
 	filling_color = "#E8C31E"
 	nutriment_amt = 5
 	nutriment_desc = list("salt" = 1, "chips" = 2)
-	sealed = TRUE
-	custom_open_sound = 'sound/bureaucracy/papercrumple.ogg'
-	open_message = "You pull the package open!"
 
 /obj/item/reagent_containers/food/snacks/bagged/chips/Initialize(mapload)
 	. = ..()
@@ -6962,6 +6962,9 @@ END CITADEL CHANGE */
 /obj/item/reagent_containers/food/snacks/boxed // Buff 3 >> 5
 	name = "ABSTRACT"
 	desc = "You shouldn't be seeing this. Contact an admin!"
+	sealed = TRUE
+	custom_open_sound = 'sound/misc/boxopen.ogg'
+	open_message = "You pop open the box!"
 
 /obj/item/reagent_containers/food/snacks/boxed/no_raisin // Buff 6 >> 12
 	name = "4no Raisins"
@@ -6971,9 +6974,6 @@ END CITADEL CHANGE */
 	filling_color = "#343834"
 	nutriment_amt = 12
 	nutriment_desc = list("dried raisins" = 6)
-	sealed = TRUE
-	custom_open_sound = 'sound/misc/boxopen.ogg'
-	open_message = "You pop open the box!"
 
 /obj/item/reagent_containers/food/snacks/boxed/no_raisin/Initialize(mapload)
 	. = ..()