The macro editor displays the raw parameter feature id as a group heading instead of a translated name

Some macros group their parameters, so that the user has to fill in one of several alternatives. The macro insert/edit dialog shows such a group as a box with a heading. That heading is never translated: it shows the internal id of the group, in every language.

Steps to reproduce

1. Set the wiki default language to French.
2. Edit a page with the WYSIWYG editor.
3. Insert the Include macro (Insert > Other Macros > Include).

Actual results

Everything in the dialog is in French – "Inclure", "(Obligatoire)", "Paramètres optionnels", "Envoyer" – except the heading of the required box, which reads Reference. On top of that, the box contains a single field, already labelled "Page", so the heading says nothing the user needs.

The attached screenshot shows this for the Include macro, and for the Office Document Viewer macro once XWIKI-23503 is applied.

Expected results

The heading is translated. Better still, no heading at all when the box holds a single visible field, since that field already has its own label.