Box trace with `boxpoints="all"` and `line_width=0` doesn't render marker in legend

When the width of a box trace is set to 0 and boxpoints is set to "all", it seems that the legend still attempts to render the box in the legend, which will never appear because the width is 0. It seems that in this case the marker should appear in the legend instead, as is already the case when the line alpha is 0.

I'd be happy to work on this as well.

import plotly.express as px

df = px.data.tips()

fig = px.strip(df, x="total_bill", y="day", color="time")
new_fig = fig.update_traces(line={"color": None, "width": 0})
new_fig.show()

Reproduce the provided box-trace example with width 0 and boxpoints set to "all", then trace the box legend rendering path. Compare it with the existing behavior when line alpha is 0; done means the marker appears in the legend when the box itself cannot render.