sketchybar: use corner radius from matugen

stow/.config/sketchybar/sketchybarrc

@@ -38,7 +38,7 @@ default=(
   icon.padding_right=1
   label.padding_left=7
   label.padding_right=7
-  background.corner_radius=5
+  background.corner_radius=$ROUNDING
 )
 sketchybar --default "${default[@]}"
 
@@ -65,12 +65,12 @@ for sid in $(aerospace list-workspaces --all); do
         background.border_width=0 \
         background.padding_right=0 \
         background.padding_left=0 \
-        background.corner_radius=0 \
         label.color=$PRIMARY_COLOUR \
         label="$sid" \
         click_script="aerospace workspace $sid" \
         script="$CONFIG_DIR/plugins/aerospace.sh $sid"
 done
+#        background.corner_radius=0 \
 
 # Currently playing music status (only works for Music.app)
 sketchybar --add item music left \