[Bug] Desktop media position

[andrewetchen]

Describe the current behavior

I noticed a small bug for the right media product__media-list while working on: #1766

This originated from #1720

When Desktop media position is set to right and the Desktop layout is set to Thumbnails or Thumbnail slider, the media list bottom margin is being set to 0 since it's the last "grid" element:

https://github.com/Shopify/dawn/pull/1110/files#diff-00b03bd62b155daa89082ba52094c182e46422a9e28cd3ec601b3a2291b52718

Screenshots

Desktop media position = Right, Desktop layout = Thumbnails

Desktop media position = Right, Desktop layout = Thumbnail carousel

Possible solution

Add the following to section-main-product.css

.product--right .product__media-list {
  margin-bottom: 2rem;
}

And make sure its margin-bottom: 0; when viewing quick add / choose options.