5.3.0

• changed normal scope to life cycle scope when possible
• replaced EventBus with Kotlin SharedFlow, be mindful of possible issues
• added sort order based on episode played or completed times, accessible from various episodes' list views
• in history view, dates shown on items are last-played dates
• in history view added sort and date filter
• more conversion of RxJava routines to Kotlin coroutines
• fixed crash issue sometimes when importing OPML files
• fixed crash issue in About view