Add inspectUri support for browsers launching via companion extension

[captainsafia]

Is your feature request related to a problem? Please describe.
Browsers launched on a users host machine via the companion extension are unable to communicate with a intermediary proxy over the inspectUri.

Describe the feature you'd like
Ideally, we would implement support for a WebSocket transport in browsers launched via the local extension similar to the support that exists for browsers launched by the primary extension.

cc: @connor4312