#$1$ Create a button that will sort the data by highest customer product rating within each product category.

#$2$ Create a button that will sort the data by highest average seller rating with seller names sorted for any repeated ratings.

#$3$ Create a button to highlight sellers with average seller rating $>=4$ AND number of seller reviews $>=10.$

#$4$ Create a button to highlight products with a discount $>=40\%$ when the customer product rating is $>=4$