Use the Date as the Android Auto Player's Content Text

As a user, I would like to see the sermon's date as the Android Auto player's content text so that I am informed when the recording took place.

The content text is the subtitle right under the sermon's name. It does not make any sense to display "William Branham" under every sermon since that information does not change. A date is much more useful.

Acceptance Criteria:

• GIVEN a user is listening to a sermon
  • WHEN viewing the sermon's information through the Android Auto player
  • AND the date is known
    • THEN the context text shows the sermon's date
    • AND the date is formatted in MMMM dd, yyyy format
  • WHEN viewing the sermon's information through the Android Auto player
  • AND the date is unknown
    • THEN the context text shows "Unknown Date"