Allow admins to add and remove invitations per account

app/components/form_elements/fieldset_toggle_component.rb

@@ -3,7 +3,7 @@
 module FormElements
   class FieldsetToggleComponent < ViewComponent::Base
     def initialize(tag: "li", form: nil, attribute: nil, field_name: nil,
-                   enabled: false, input_enabled: true, title:, description:)
+                   enabled: false, input_enabled: true, title:, description: nil)
       @tag = tag
       @form = form
       @attribute = attribute