Improve the "Extras" module

The "Extras" module needs some serious love. As of now, the items can't be clicked on, prompting some kind of a larger screen pop up, the text is hard to see and even harder to scroll through, there are no category options and there are no options for variations (ie. different sized t-shirts). Here are some suggestions: * Add the ability for clicked items to pop-up like the a la carte menu items do when clicked * Allow more than one photo per item * Add the option to have product variations attached to the items, similar to the portion size for dishes, this would allow us to add color variations or size variations * Allow us to add product categories to the products similar to how we can structure our weekly menu