Change from thunar to pcmanfm

thunar failed to find default applications and also default terminal to
open was dependend on xfce settings

modules/home/i3/i3/config

@@ -215,7 +215,7 @@ bindsym $mod+Print exec --no-startup-id "xfce4-screenshooter"
 
 bindsym $mod+c exec qalculate-gtk
 bindsym $mod+Shift+p exec xwacomcalibrate
-bindsym $mod+e exec thunar
+bindsym $mod+e exec pcmanfm
 bindsym $mod+b exec firefox
 bindsym $mod+p exec $scripts/display-toggle-mirror