Update [Display Suite] module from 3.1 to ~3

Display Suite ds 8.x-3.2 is out
https://www.drupal.org/project/ds/releases/8.x-3.2

Some of the important issues:
Issue #2875412: Illegal offset type in isset or empty in _ds_field_ui_table_layouts
https://www.drupal.org/project/ds/issues/2875412

Issue #2976560: Services file has wrong argument for ds.route_subscriber
https://www.drupal.org/node/2976560

Issue #2864864: The DS configurations are empty on template_preprocess_ds_entity_view
https://www.drupal.org/node/2864864

This will fix many issues, If you had any issues with VMI and some Display modes for media types