[Use of react!]

The correct method of using react! is

```julia
react!(fig, fig.plot.data, fig.plot.layout)
```

but I found that using

```julia
react!(fig.plot, fig.plot.data, fig.plot.layout)
```

does not have a method error. And also using redraw! doesn't update the plot.

The following is the code I used for the test:

```Julia
using PlotlyJS
x = [1, 2, 3]
y = [1, 4, 7]
tr = scatter(x=x, y=y,)
fig = plot(tr)

# change data
fig.plot.data[1][:y][3] = 0 # == y[3] = 0
react!(fig.plot, fig.plot.data, fig.plot.layout) # not correct, but no error text in the terminal
redraw!(fig) # also does not update the plot
display(fig)
```

Start with the react! and redraw! calls in the provided PlotlyJS example, comparing the documented fig and fig.plot argument forms. Reproduce the silent call and the unchanged plot, then trace the relevant PlotlyJS entry points to determine the expected error or update behavior. Done means the incorrect usage is handled consistently and the redraw behavior is verified.

Written by the indexing model from the issue text.