2024-09 Content Prebuild (#15295)

* 202409 subscriber gear

* 2024-09 enchanted armoire gear

* 2024 fall festival gear

* 2024-09 background

* 2024-09 pet quest

* typos and update featuredItems.js

* quest and typo fix

* fix subscriber set name

* text amendments

* update quest title
# Conflicts:
#	habitica-images

website/common/script/content/constants/schedule.js

@@ -478,6 +478,7 @@ export const MONTHLY_SCHEDULE = {
           'triceratops',
           'treeling',
           'beetle',
+          'raccoon',
         ],
       },
       {