Flycat updates: share meaningful link for nip-23 blog post

flycat now supports rendering the metadata for the nip-23 long-form articles on the server side, what this mean is that you should be able to share an informative link(with the correct title and description etc) for your article. for example, since flycat also render such metadata with your links on short notes (event 1), when you share a flycat article link in your short notes on flycat, you can see it with a beautiful preview like the following:

because I don't want flycat to be a property software, I don't want to introduce a database(which makes it harder to deploy and host your own flycat instance) in order to do that. so right now we use a very bad method to achieve this, but I think it will be alright since we will make it better after setting up our own relay(instead of a private database, which means an interoperable way to do things on nostr) or doing some code refactoring.