* fixed error playing downloaded file
* player buffer updates on a flow every 5 seconds
* show updated duration (when invalid) in episodes list and playerUI
* adjustment in PlayerUI
* in AVPlayer screen, changing speed in video player is reflected in PlayerUI
* likely fixed possible PlayUI flickers on start
* in OnlineFeed, ensure "Likely removed" list has not duplicates
* cleared dependency on compose runtime in non-UI routines
* re-worked curMedia monitoring
* some adjustment in FeedSettings
