#26778: #MNS11130 (Customer able to checkout food items with provincial shipping address)

- Read and understand the custom code of the previous dev in the checkout.liquid
- Use Shopify.Checkout object to get the current step page of checkout
- If the current step is the 'contact_information' page add a javascript function that will detect if the customer has a food item in checkout
- If checkout has a food item add a javascript function that will remove provinces in the regional selection