Merge branch 'feature/spanish' into staging

Author: tsubik

app/admin/custom_admin_header.rb

@@ -143,6 +143,7 @@ def build(namespace, menu) # rubocop:disable Metrics/AbcSize
             ul do
               li { link_to t("active_admin.menu.language.english"), admin_dashboard_change_language_path(locale: :en), method: :post }
               li { link_to t("active_admin.menu.language.french"), admin_dashboard_change_language_path(locale: :fr), method: :post }
+              li { link_to t("active_admin.menu.language.spanish"), admin_dashboard_change_language_path(locale: :es), method: :post }
             end
           end
         end

config/initializers/locale.rb

@@ -1,4 +1,4 @@
 # frozen_string_literal: true
 
-I18n.available_locales = [:en, :fr, :pt, "zh-CN", :ja, :ko, :vi]
+I18n.available_locales = [:en, :fr, :pt, :es, "zh-CN", :ja, :ko, :vi]
 I18n.default_locale = :en

config/locales/en.yml

@@ -256,6 +256,7 @@ en:
         language: 'Language'
         english: 'English'
         french: 'French'
+        spanish: 'Spanish'
       logout: 'Logout'
     dashboard_page:
       columns: