• renamed Subscriptions screen to Library screen
• in topbar of Queues and Facets screens, added Library button in Feeds view, to open a specialized view of Library for better operations
• in Library screen
  • added "Add podcast" in menu to open FindFeeds screen
  • show "processing" when removing a volume
• in Facets screen
  • fixed not refreshing on initial opening
  • ensure reconcile skips local feeds
• amended and fixed shortcuts with long-press on app icon
• removed SplashActivity
• some code refactoring and removed some old unused stuff