relay display issue

two issues with relay display:
- the columns are all over the place
- first relay should be Relay1 not Relay 0 (the value in mavlink is 0, but the parameter is Relay1, so user should see Relay1)


Start by locating the Mission Planner UI that renders relay values and the MAVLink-to-parameter mapping used for the relay display. Reproduce the reported layout and naming issues, then verify that the columns align and the first relay is shown as Relay1 rather than Relay 0.

Written by the indexing model from the issue text.