WebOS DV direct play in mkv

[asardaes]

Hello, I'm not sure if this is addressed in other issues, so I figured I'd ask here. A lot of DV media in mkv containers are remuxed to mp4 by jellyfin when playing on WebOS, but this PR reported that direct play can now be supported in WebOS 25. However, if you check the last comments, it seems DV profile 7.6 still causes issues and still needs remuxing to mp4. It would be nice to take those details into account in this client too.

EDIT: after testing this with my setup, I believe DV profile 7.6 always uses the HDR10 fallback even when remuxing to mp4, so leaving it as mkv is probably better so it uses direct streaming.