Steps to reproduce the issue

Display the Media manager, select some items and click on the Delete toolbar button.

Expected result

The /administrator/components/com_media/resources/scripts/components/modals/confirm-delete-modal.vue should display an alert before deleting.

Actual result

It deletes items directly.
Looks like this is because
MediaManager.Event.listen('onClickDelete', () => this.$store.dispatch('deleteSelectedItems'));

is used instead of

MediaManager.Event.listen('onClickDelete', () => this.$store.commit(types.SHOW_CONFIRM_DELETE_MODAL));

But this would display the alert but will not take into account the selected items to delete.