Add a one week range for the homescreen widget

The current options are today, 4 weeks, 6 months… Setting it to “today” is pretty useless as you rarely listen to the same song more than once in the same day, and setting it to “4 weeks” makes it very hard to see a difference in listening trends. Being able to set it to a range of 3-10 days would be perfect, and a custom range would be even better