6.3.0

• improved handling of playing next in queue when some items have been removed from the queue
• changed toggle play state logic: New or Unplayed -> Played, Played -> Unplayed
• episodes list views are more efficient and less error-prone, reduced dependence on events and relying more on DB live updates
• added episode counts in queues list spinner in Queue view
• resorted handling of various DB objects to managed type
• took out the long-useless context menu codes from episodes list views
• fixed crash when toggling Podcini during downloads
• calmed some complaints on StrictMode policy UntaggedSocketViolation
• adjusted some Composable sizes