message: fix(ContentBlock): updated copy token to match updated designs
  Updates content block copy token
diff: }
  &__copy {
  p {
  - @include carbon--type-style('expressive-paragraph-01', true);
  + @include carbon--type-style('expressive-heading-03', true);
  color: $text-01;
  margin-bottom: $carbon--spacing-07;
  