Import Torrent dialog: fix file filter
KUrlRequester::setFilter expected name filters separated by \n, not ;;, other than QFileDialog. And it also has broken support for the Qt syntax "Comment (pattern)", only works with old-style kde "pattern|Comment".
frameworks/kio!1321 (merged) has been created to fix the latter, but for now the work-around is needed.
BUG: 464350 FIXED-IN: 23.04.3