Forum disabled

Today, I have turned off the forum. Almost all of the traffic in the last few years was spam; deleting it every day seemed like a waste of time, and the problem got only worse. Those who seek support needed to register yet an account on yet another website, which made the forum hard to reach. The forum link now redirects to GitHub discussions; that also requires an account, but many people already have a GitHub account. Those who don’t want that can still get MPD support via IRC on libera.chat.