Evaluate using OpenVerse images for Pattern Library #73
Description
Context: pewaj1-1jv-p2#comment-934
Currently, the github:export-pattern-to-repo command replaces images with placeholders from Lorem Picsum (Implemented in #59). Other WordPress patterns use OpenVerse, and we should explore using it, as well. OpenVerse does have an image search API, and while you can't get direct dimensions like you can from Lorem Picsum, it does have an aspect_ratio parameter that could be used.