* Only set border-style for appropriate border side
Fixes#13121.
Something to consider is that this implementation will still have issues if we ever implement support for utilities like `border-r-dashed`. 6am and I just woke up and am going to the gym now but leaving this as a note to consider when I get back before merging :)
* Fix typos in test names
* Revert playground change
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Co-authored-by: Adam Wathan <4323180+adamwathan@users.noreply.github.com>
