worf: Update yabay/sketchybar/alacritty config

hosts/worf/sketchybar/items/front_app.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+front_app=(
+  label.font="$FONT:Bold:12.0"
+  icon.background.drawing=on
+  display=active
+  script="$PLUGIN_DIR/front_app.sh"
+  click_script="open -a 'Mission Control'"
+)
+
+sketchybar --add item front_app left         \
+           --set front_app "${front_app[@]}" \
+           --subscribe front_app front_app_switched