cirq-web doesn't support LineQubit

```python
import cirq
import cirq_web

cirq_circuit = cirq.Circuit(cirq.H(cirq.LineQubit(0)))
cirq_web.Circuit3D(cirq_circuit).generate_html_file(
    file_name="circuit_viewer.html",
    open_in_browser=True,
)
```

results in

```
AttributeError: 'LineQubit' object has no attribute 'row'
```