Stop Spamming Azuracast's API to see if the song changed.

[45ninjas]

The endpoint we're using from Azuracast API tells us the following:

• When the current song will finish.
• The next song.

Why not wait until the current song finishes then update the UI with the next song. Then wait a little bit before spamming that endpoint.

Maybe there's some data we can use to make each client attack the endpoint at different times. Could we use "random-range-0-1 * length-of-song" to decide when to attack next?