Width/height as setting should be configured, not native.

[henbos]

Add similar clarifications as we did in https://github.com/w3c/mediacapture-main/pull/908/files but for width and height. For example the native camera resolution may be bigger than what we see due to scaling or cropping.

[jan-ivar]

A camera may struggle to maintain a frame rate. Why would it struggle to maintain resolution?

I think apps expect {width, height} = track.getSettings() to reflect actual dimensions.

[jan-ivar]

Oh I think I see, the language on frame rate deals with 3 things, the configured setting, vs. the native setting, vs. the measured setting.

For resolution, you'd like language on 2 things, the configured setting, vs. the native setting? If I understand correctly that makes sense to me.