External player control from lamp settings:
- Automatically switch to the next series at the end of the current one (playlist for the player). Settings->Player->Next series (support for players: Vimu, Виму, MX);
- Continue from the last viewing location. Settings->Player->Timecode (support for players: Vimu, Виму, MX, Just, VLC).
Fixed: start position time, for supported external players, now corresponds to the timeline just updated (no need to reload the list of video files in the lamp to continue watching from a new position)