[BUG] airsonic-advanced volume mapping Podcast Path should use container path /var/podcasts not /var/podcast

[benfishbus]

Describe the bug The airsonic-advanced template's container path for Podcast Path does not match what airsonic is looking for out of the box. The template points to /var/podcast, while airsonic wants /var/podcasts (plural), resulting in an error when airsonic tries to update subscribed podcasts.

[A75G]

updated template