Editable dialog box `setDialogDescription()` not rendered in Studio UI

[GAL-CS]

Affected Version

2026.2

Affected capability

Documents

Steps to reproduce

1. In an areabrick implementing EditableDialogBoxInterface, add a dialog field with a description via the documented fluent setter (or the 'description' array key):

   (new Editable\Select())
       ->setName('media_position')
       ->setLabel('Media position')
       ->setDialogDescription('Choose on which side the media is displayed');

2. Edit a document that uses the brick and open the brick's edit dialog in the Studio UI document editor.

Actual Behavior

The description is not displayed. The backend serializes it correctly (Pimcore\Model\Document\Editable::getDialogDescription() written as the description key in Document\Editable\Area / Document\Editable\Areablock), but the Studio UI renderer drops it: the DialogConfigItem type (editables-dialog/types.ts) declares only type, title, items, label, name, and editable-dialog.tsx renders each field as <Card title={configItem.label}> with no description output.

Expected Behavior

The dialog field description is rendered in the dialog (as in the classic admin UI), matching the documented setDialogDescription() / description behavior.