Cleanup some RC calibration text as well

Also move default component ID into data model

Fixed race issues in config upload, tested to be reliable now - board startup scripts now need the other half of testing

Instantiate a PX4 config view in PX4 mode from start, since boards with just the bootloader (or no working telemetry) cannot be flashed else.

don't process updates to unmapped rc channels when we're not in
calibration mode