{% load i18n %}
{% comment %}
A host page already has its own way to show a message: a toast
library, a live region, or something else. This widget must not force
one choice on every page that uses it. So the script fires a bubbling
`nestingdolls:sequence-change` event instead, after it adds or removes
a row. The host page can listen for the event and show its own
message. Do not add a status element here again: see README.md.
{% endcomment %}