[i3] Use scrot instead of gnome-screenshot

i3/.config/i3/config

@@ -296,7 +296,7 @@ bindsym $mod+Shift+s exec ~/.config/rofi/slack.sh
 bindsym $mod+Shift+y exec xfreerdp /u:powellc /p:mainroot /v:telesto.local /w:1200 /h:700
 bindsym $mod+Ctrl+y exec pkill xfreerdp
 
-bindsym Print exec --no-startup-id gnome-screenshot
+bindsym Print exec --no-startup-id scrot
 bindsym $mod+Ctrl+i exec --no-startup-id $solobrowser https://play.unbl.ink/mopidy
 bindsym $mod+Ctrl+s exec --no-startup-id $solobrowser https://15five.slack.com
 bindsym $mod+Shift+i exec --no-startup-id $solobrowser https://15five-dev.atlassian.net/secure/Dashboard.jspa