Update build-windows-packages-qt6.8.yml

Use QCollator in playlist

Use Qt::SkipEmptyParts when using Qt >= 5.14

Use the old code to get the tracks count. This tries to fix bug #1220

Get the duration as soon as possible. Should fix bug #1205

Disable the swayidle code if using qt 4

Update the copyright year

Update Release_notes.md

Create build-appimage-22.yml

Update build-flatpak.yml