he map loads to make changes to the map.
         */
        map.on('load', () => {
            /**
             * This is where your '.addLayer()' used to be, instead
             * add only the source without styling a layer
             */
            map.addSource('places', {
                'type': 'geojson',
                'data': stores
            });

            /**
             * Add all the things to the page:
             * - The location listings on the side of the page
             * - The m