Add better handling of run loss

Currently if a run is lost, when trying to update information a traceback is printed:
```sh
...
  File "../simvue-cli/src/simvue_cli/actions.py", line 74, in _check_run_exists
    raise ValueError(f"Run '{run_id}' status is '{status}'.")
ValueError: Run 'T6xPreaB9cX3KafqYBkRfQ' status is 'lost'.
```

this should be printed in a more friendly manner as part of the CLI.