Link/Image previews for tags #616
Merged
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Overview
Fixes #270 by implementing automatic link and image previews to the
/tagcommand.Image only preview:

Link preview:

Utility
This feature is also available as general purpose utility via the
LinkPreviewsclass, yielding recordsLinkPreview.The utility offers two methods:
static List<String> extractLinks(String content)static CompletableFuture<List<LinkPreview>> createLinkPreviews(List<String> links)Features like #637 will likely make use of this as well.
Dependencies
Adds
io.github.url-detector:url-detector:0.1.23to the deps. URL regex is not something we want to have in our own code base lol.Also adds JSoup for the OpenGraph/Twitter meta-extraction.
Checklist
possibly unit tests(not today)