 Version 6.13.2

* replaced the setting of prefSmartMarkAsPlayedSecs by an adaptive internal val smartMarkAsPlayedPercent = 95
	* if the episode is played to over 95% of its duration, it's considered played
* reworked the chain actions of set play state, remove from queue, and delete media
* fixed the issue of fully played episode being marked as Skipped
* fixed speed indicator not updating issue in PlayerUI
* added Again and Forever states to episode filter
* in Settings, "Keep favorite episode" is changed to "Keep important episodes", and it applies to episodes set as Super, Again, or Forever
* some reduction in access to Preferences files for improved efficiency
