Also using appid to match pulse stream
pid matching need to skip stream that has portal appid, as
app using portal may be in sandbox and doesn't has a right pid.
fix audio control on task pannel for flatpak apps
https://docs.pipewire.org/page_portal.html
https://docs.flatpak.org/en/latest/conventions.html#application-ids
Edited by Peng Haiyi