fixes #4053

fixes #4049

people with half a brain will implicitly follow those guidelines any way and
provide the information requested in the issue template.

The vast majority of people have ignored the issue template in the past anyway.

Thank you to @ailicic for figuring out the new API.

Closes #4050

Upon accepting a video call on a device that can not establish a video track on
its own (for example by not having a camera), displaying the video enable/disable
button would fail. This commit defaults this button to disabled.

OkHttp gives us more fine grained control over the HTTP library and frees us from any platform bugs