media.links.menu.yml

entity.media_type.collection:
  title: 'Media types'
  parent: system.admin_structure
  description: 'Manage media types.'
  route_name: entity.media_type.collection

media.settings:
  title: 'Media settings'
  parent: system.admin_config_media
  description: 'Manage media settings.'
  route_name: media.settings