Allow the wide menu to be filtered

bin/omarchy-theme-menu

@@ -19,7 +19,7 @@ mapfile -t themes < <(
 )
 
 # Show Walker menu
-selection=$(printf '%s\n' "${themes[@]}" | walker --dmenu --theme dmenu_250 2>/dev/null)
+selection=$(printf '%s\n' "${themes[@]}" | walker --dmenu --theme dmenu_250 -p "Choose Theme" 2>/dev/null)
 
 # Remove any Pango markup before converting back to filename
 clean_selection=$(echo "$selection" | sed -E 's/<[^>]+>//g')