Added multi-phone numbers in mobile setting page and fixed language setting

app/controllers/application_controller.rb

@@ -163,6 +163,7 @@ class ApplicationController < ActionController::Base
       browser_locale = request.env['HTTP_ACCEPT_LANGUAGE'].scan(/^[a-z]{2}/).first rescue nil
       if browser_locale.eql?("zh")
         condition = @site.in_use_locales.include?("zh_tw")
+        browser_locale = "zh_tw"
       else
         condition = @site.in_use_locales.include?(browser_locale)
       end