Currently, all product for which the "include in online store" toggle is turned on show up in a store.

Since we have the ability to create MULTIPLE STORES, it makes sense to be able to select which product categories we want for each specific store.

Currently, we have to click on the products tab of the store and then include or exclude each product.

We also need a ADD TO CART button that shows up at the bottom of each product image or description so that the shopper can add all they want, and check out.