Set default shortcuts for switching and moving to next/prev desktop
requested to merge ngraham/kwin:set-default-keyboard-shortcuts-for-moving-windows-to-next-and-previous-desktops into master
We have default shortcuts for moving windows to other desktops based on their position, but none for moving windows to the sequentially next and previous desktops.
I chose Meta+Ctrl+PageUp/PageDown to re-use people's familiarity with the concept of switching between the sequentially next and previous tabs, which generally use Ctrl+PageUp/PageDown.
Adding shift moves the active window to the next or previous desktop, as with the shortcuts for moving windows to a desktop in the specified direction.