qmlui: fix vc cue list startup intensity
qmlui: fix vc cue list startup intensity

Save side fader status to project XML

mcallegari/qlcplus,sbenejam/qlcplus,mcallegari/qlcplus,mcallegari/qlcplus,plugz/qlcplus,plugz/qlcplus,kripton/qlcplus,sbenejam/qlcplus,kripton/qlcplus,mcallegari/qlcplus,sbenejam/qlcplus,sbenejam/qlcplus,plugz/qlcplus,sbenejam/qlcplus,kripton/qlcplus,sbenejam/qlcplus,plugz/qlcplus,mcallegari/qlcplus,mcallegari/qlcplus,plugz/qlcplus,mcallegari/qlcplus,plugz/qlcplus,sbenejam/qlcplus,kripton/qlcplus,kripton/qlcplus,kripton/qlcplus,kripton/qlcplus,plugz/qlcplus