feat: AC3 audio for the embed players

[Hula1267]

At least half the movies dont work because of this. Opening in a player is not convenient, it's slower and not fluid.

[AnusLab]

Can confirm. Must use VLC or MPV to make every playback stable.
It would be nice if users could install mpv player simply via IPTVNator. Also Embedded instead of seperate window for the stream while using VLC or MPV Player.