Resolve "No picture in embedded player"
Closes #1697 (closed)
This MR adds support for all cover sources in the embedded player. Currently, the embedded player only checks to see if the album associated with a track contains a cover, and returns the default cover if not. Many channels don't use albums or series (see this forum post). This MR proposes the following approach:
- Look for covers in the following locations in this order:
- The track
- The album/series
- The artist
- Return the first cover object for the embedded player. Return the default cover if none are found.