Display "Today's Sales" under Browse Sales tab

[jaikamat]

Users have to search for each card by title, which is a cumbersome way to view sales. Create one endpoint that retrieves the day's singles sales for at-a-glance reporting, and refactor the existing getSales endpoint to retrieve single cards. Both endpoints should expose more data about the sale, price, id, etc for use cross-platform ins Lightspeed POS.