Revert changes and use selectable locales for helper local_options [OFN-11513]

app/helpers/i18n_helper.rb

@@ -2,7 +2,7 @@
 
 module I18nHelper
   def locale_options
-    OpenFoodNetwork::I18nConfig.available_locales.map do |locale|
+    OpenFoodNetwork::I18nConfig.selectable_locales.map do |locale|
       [t('language_name', locale:), locale]
     end
   end

app/views/spree/admin/users/_form.html.haml

@@ -14,7 +14,7 @@
       = hidden_field_tag "user[spree_role_ids][]", ""
     = f.field_container :locale do
       = f.label :locale, t(".locale")
-      = f.select :locale, OpenFoodNetwork::I18nConfig.locale_options, class: "fullwidth"
+      = f.select :locale, locale_options, class: "fullwidth"
     = f.field_container :enterprise_limit do
       = f.label :enterprise_limit, t(".enterprise_limit")
       = f.text_field :enterprise_limit, class: "fullwidth"

spec/system/admin/users_spec.rb

@@ -141,8 +141,8 @@ RSpec.describe "Managing users" do
         fill_in "Password", with: "user1Secret"
         fill_in "Confirm Password", with: "user1Secret"
 
-        expect(page).to have_select "Language", selected: "en_AU"
-        select "es", from: "Language"
+        expect(page).to have_select "Language", selected: "English"
+        select "Español", from: "Language"
 
         perform_enqueued_jobs do
           expect do