Allow handing custom field names to toggle fieldset component

app/components/form_elements/fieldset_toggle_component.rb

@@ -2,11 +2,13 @@
 
 module FormElements
   class FieldsetToggleComponent < ViewComponent::Base
-    def initialize(form: nil, attribute: nil, tag: "li", enabled: false,
-                   input_enabled: true, title:, description:)
+    def initialize(tag: "li", form: nil, attribute: nil, field_name: nil,
+                   enabled: false, input_enabled: true, title:, description:)
+      @tag = tag
       @form = form
       @attribute = attribute
-      @tag = tag
+      @field_name = field_name
+      @form_enabled = @form.present? || @field_name.present?
       @enabled = enabled
       @input_enabled = input_enabled
       @title = title