[LG WebOS] Add option to select audio track

[whatuserever]

Stremio Version
Stremio Theater v1.3.0
LG WebOS 8.3.1-30

Is your feature request related to a problem? Please describe.
There is no button to select an audio track in the LG WebOS version of Stremio. I'm watching a video with 2 tracks - commentary and original. Stremio chooses the commentary track and there's no option to change that.

Describe the solution you'd like
Add a button to select audio track, similar to the Android TV version.

Describe alternatives you've considered
My only alternative is to use a different client, which is not ideal.

Additional context
The tracks are named:

• English (truehd)
• English (ac3)

The ac3 is the commentary one, which is chosen by Stremio.