[i3] Fix hsetroot to use bing and remove cast stuffs

i3/.config/i3/config

@@ -249,10 +249,6 @@ bindsym $mod+Shift+Print exec feh $(last $shots)
 # CAST
 set $casts ~/videos/casts
 
-bindsym $mod+F12       exec cast 
-bindsym $mod+Ctrl+F12  exec cast -s 
-#bindsym $mod+Shift+F12 exec
-
 bindsym $mod+Ctrl+F11  exec anypaste -x -s -p streamable $(last $casts)
 bindsym $mod+Shift+F11 exec ffplay -loop 0 $(last $casts)
 
@@ -281,8 +277,11 @@ bindsym XF86Search exec ~/.config/i3/bright.sh 1 # decrease screen brightness
 # ROFI
 bindsym $mod+space   exec rofi -show combi -display-window "W"
 
+# Lock with 
+bindsym $mod+F12 exec --no-startup-id i3lock -i ~/var/media/backgrounds/astrobin/`ls -Ar ~/var/media/backgrounds/astrobin/ | tail -n 1` -t
+
 # BACKGROUND
-exec hsetroot -cover ~/var/backgrounds/astrobin/`ls -Ar ~/var/backgrounds/astrobin | tail -n 1`
+exec hsetroot -cover ~/var/media/backgrounds/bing/`ls -Ar ~/var/media/backgrounds/bing | tail -n 1`
 
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