sway: use caffeinated instead of disabling swayidle

scripts/_sway_idle_toggle

@@ -1,11 +0,0 @@
-#!/bin/sh
-
-swayidlectl() {
-  systemctl --user $1 swayidle.service
-}
-
-if swayidlectl status > /dev/null; then
-    swayidlectl stop
-else
-    swayidlectl start
-fi

scripts/default.nix

@@ -44,7 +44,6 @@
     ];
     _diffr = [ diffr ];
     _thunar-terminal = [ terminal ];
-    _sway_idle_toggle = [ swayidle ];
     kak-pager = [
       fish
       _diffr