rephrase swayidle-timout example to improve readability

config.in

@@ -37,8 +37,7 @@ output * bg @datadir@/backgrounds/sway/Sway_Wallpaper_Blue_1920x1080.png fill
 #
 # exec swayidle -w \
 #          timeout 300 'swaylock -f -c 000000' \
-#          timeout 600 'swaymsg "output * dpms off"' \
+#          timeout 600 'swaymsg "output * dpms off"' resume 'swaymsg "output * dpms on"' \
-#               resume 'swaymsg "output * dpms on"' \
 #          before-sleep 'swaylock -f -c 000000'
 #
 # This will lock your screen after 300 seconds of inactivity, then turn off