Bind pwatcher menu to $mod+Shift+w

dotfiles/i3/config

 bindsym $mod+o              exec "$spn bmo menu context"
 bindsym $mod+Print          exec "newfeh"
 bindsym $mod+grave          exec "$spn bmo menu windows"
+bindsym $mod+Shift+w        exec "$spn bmo menu projects"
 
 
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