v6.4.54 release

• Batch stale network scanner deletions for better performance (avoid a nasty ANR when moving videos on network shares)
• Fix downloaded subtitle discovery not working after recent changes
• Show clock icon with estimated end time on the phone seekbar
• Move unavailable poster repair off the main thread to improve responsiveness
• Fix various UI glitches: incorrect layouts, view casts, and mismatched translated text
• Improve stability by guarding against invalid cursor/column access and missing lifecycle calls
• Restore proper title transition animation behavior
• Fix Android 13+ broadcast receiver registration and app link handling issues
• Preserve stable WiFi lock behavior during background network indexing