Other: Aligned code to changes (`config.lang` to `config.languages`). Part of the Translation Service v2 (ckeditor/ckeditor5#624).
@@ -57,7 +57,7 @@ export default class BoxedEditorUIView extends EditorUIView {
],
role: 'application',
dir: 'ltr',
- lang: locale.lang,
+ lang: locale.language,
'aria-labelledby': `cke-editor__aria-label_${ ariaLabelUid }`
},