PRE ORDER CAPACITY TO SEPARATE "MAIN ITEMS" & "SIDE ITEMS"

Please add the ability to set pre-order capacity by main items only, so side items (like dips) don’t count towards the slot limit. At the moment, the slot limit is a total item limit across all orders in that slot, so adding dips reduces how many pizzas can be ordered. A simple toggle like ‘Main items’ vs ‘Side items’ would let us keep 8 pizzas per 15 minutes while still allowing dips as extras whilst not reducing pizza sales