message: fix(content-block-simple): added max-width to media components
  ### Related Ticket(s)
  ### Description
  I've added max-width to the slotted media components on `ContentBlockSimple`.
  This change affects React and Web Components.
diff: :host(#{$dds-prefix}-content-block-simple) {
  display: block;
  +
  ::slotted(#{$dds-prefix}-content-block-complementary) {
  @include carbon--breakpoint-down('lg') {
  margin: $layout-05 0;
  }
  }
  +
  + ::slotted([slot='media']) {
  + max-width: rem(640px);
  + }
  }
  