Updated Drupal to 8.6. This goes with the following updates because it's possible...

[yaffs-website] / web / core / profiles / demo_umami / config / install / image.style.large_21_9.yml

langcode: en
status: true
dependencies: {  }
name: large_21_9
label: 'Large 21:9 (1440x620)'
effects:
  90b69780-6eb1-4cc8-a500-88235ad52f5c:
    uuid: 90b69780-6eb1-4cc8-a500-88235ad52f5c
    id: image_scale_and_crop
    weight: 1
    data:
      anchor: center-center
      width: 1440
      height: 620