a0d4c2f Add a keypress to the 'keepalive' loop in desktop_notifications

Authored and Committed by adamwill 3 years ago
    Add a keypress to the 'keepalive' loop in desktop_notifications
    
    Just repositioning the mouse appears not to be enough to prevent
    the sesssion going idle any more, since the 20200731.n.0 compose.
    Not sure what causes this, probably the kernel. Adding a space
    keypress seems to help in both KDE and GNOME.
    
    Signed-off-by: Adam Williamson <awilliam@redhat.com>