Fix localization test failing due to order of locale definitions (#12393)

config/application.rb

@@ -53,8 +53,8 @@ module Mastodon
       :el,
       :en,
       :eo,
-      :es,
       :'es-AR',
+      :es,
       :et,
       :eu,
       :fa,
@@ -93,8 +93,8 @@ module Mastodon
       :sk,
       :sl,
       :sq,
-      :sr,
       :'sr-Latn',
+      :sr,
       :sv,
       :ta,
       :te,

spec/requests/localization_spec.rb

@@ -26,6 +26,7 @@ describe 'Localization' do
       I18n.t('about.tagline', locale: 'es')
     )
   end
+
   it 'falls back to english when locale is missing' do
     headers = { 'Accept-Language' => '12-FAKE' }