Add support for running apps as root by policykit

.xsessionrc

@@ -5,14 +5,13 @@ if [[ "$DESKTOP_SESSION" = "dwm" ]]; then
     export AWT_TOOLKIT=MToolkit
     wmname LG3D
 
-    compton &
-    dwmstatus &
     if test -f "$HOME/.screenlayout/main.sh"; then
       "$HOME/.screenlayout/main.sh"
     fi
     
     compton &
     redshift &
+    dwmstatus &
 
     if test -f /usr/share/backgrounds/gnome/Road.jpg ; then
         feh --bg-scale /usr/share/backgrounds/gnome/Road.jpg &
@@ -32,3 +31,8 @@ fi
 if command -v slack &> /dev/null ; then
     slack &
 fi
+
+# Authentication agent for running application as root
+if test /usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1 ; then
+    /usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1 &
+fi