~/.config/sway: Run kanshi on restart and add shortcut for it

.config/sway/config

#output LVDS-1 dpms off
exec kanshi
exec_always kanshi
### Idle configuration
#
    # Reload the configuration file
    bindsym $mod+q reload
    bindsym $mod+Shift+p exec kanshi
    # Exit sway (logs you out of your Wayland session)
    bindsym $mod+Shift+q exec swaynag -t warning -m 'You pressed the exit shortcut. Do you really want to exit sway? This will end your Wayland session.' -b 'Yes, exit sway' 'swaymsg exit'