[FR] Support for blacklisting/whitelisting xesam:url

[Hexality]

Hi, I don't really know if it's already possible but couldn't find any reference to it so I decided to open a feature request for this.

Can we get support for filtering out/in the 'xesam:url' mpris metadata? This would actually help us get more control over what is scrobbled from websites on the desired play source (mainly browsers).

Like for an example, let's say I use a platform like Qobuz, but only want it to be scrobbled and exclude everything else, I could simply exclude firefox xesam:url https://play.qobuz.com/ from it, this would help a lot.