feat: add two-factor view helpers

Author: santiagorodriguez96

app/helpers/devise_helper.rb

@@ -2,4 +2,8 @@
 
 # Keeping the helper around for backward compatibility.
 module DeviseHelper
+  def two_factor_method_links(resource, current_method)
+    methods = resource.enabled_two_factors - [current_method]
+    safe_join(methods.map { |method| render "devise/two_factor/#{method}_link" })
+  end
 end