Regression: Unavailable devices in unsupported browsers

[MartinSchoeler]

This PR disables device changes in browsers that not support the setSinkId method, and therefore does not support device changes directly from the browser

I've decided to test if the setSinkId is available instead of listing browsers that supported or not, this way if a browser starts/stops supporting it, we don't have to do anything, and there is also firefox, where you can enable it as an optional feature.

[lgtm-com]

This pull request introduces 2 alerts when merging a04bd19 into 02d9dd9 - view on LGTM.com

new alerts:

• 2 for Unused variable, import, function or class

[KevLehman]

🤔 since the description goes to release, can you put a note mentioning that there's "experimental" support for the feature on Firefox through flags? https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/setSinkId. Not recommended for longer use, but at least for trying out.

[MartinSchoeler]

🤔 since the description goes to release, can you put a note mentioning that there's "experimental" support for the feature on Firefox through flags? https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/setSinkId. Not recommended for longer use, but at least for trying out.

I wanted to avoid talking about browsers though, since today is experimental but tomorrow it might change