Can't insert space next to an emoji inside <kbd> tags

[awesomerobot (Kris)]

I think we can use the gap property for this? the problem is that changing kbd to use flexbox removed any natural space between elements within:

kbd {
  gap: 0.5em;
}

produces:

This would add space between any HTML elements within the KBD tag, and wouldn’t require any exceptions for first/last-child.