Use danger button variant in comment delete modal

app/views/projects/notes/_more_actions_dropdown.html.haml

@@ -13,6 +13,6 @@
             = _('Report abuse to admin')
       - if note_editable
         %li
-          = link_to note_url(note), method: :delete, data: { confirm: 'Are you sure you want to delete this comment?', qa_selector: 'delete_comment_button' }, remote: true, class: 'js-note-delete' do
+          = link_to note_url(note), method: :delete, data: { confirm: _('Are you sure you want to delete this comment?'), confirm_btn_variant: 'danger', qa_selector: 'delete_comment_button' }, aria: { label: _('Delete comment') }, remote: true, class: 'js-note-delete' do
             %span.text-danger
               = _('Delete comment')

locale/gitlab.pot

@@ -4696,6 +4696,9 @@ msgstr ""
 msgid "Are you sure you want to delete this SSH key?"
 msgstr ""
 
+msgid "Are you sure you want to delete this comment?"
+msgstr ""
+
 msgid "Are you sure you want to delete this deploy key?"
 msgstr ""