nvim: add lupanbones colorscheme (my variant for zenbones)

- also add lupanbones colors for kitty and st
- remove zutty config

xsession/bin/lupan-set-theme

@@ -46,9 +46,9 @@ fi
 
 XSET=$(readlink -e ~/.config/xsettingsd/xsettingsd.conf)
 if [ "$THEME" = dark ]; then
-    kitten themes --reload-in=all 'Flexoki (Dark)'
+    kitten themes --reload-in=all 'lupanbones-dark'
 elif [ "$THEME" = light ]; then
-    kitten themes --reload-in=all 'Flexoki (Light)'
+    kitten themes --reload-in=all 'lupanbones-light'
 fi
 
 # GTK