Change default plot height from 450px to something user-selected.

Hi devs,

I'm using `plotly::plotlyOutput()` within a `shinyjqui::jqui_resizable()` element in a shiny application, which works perfectly, by setting `plotly::plotlyOutput(..., height = "100%")`. However, all plots are initialized by default with a height of 450px (before any resizing). Is it possible to change this default, e.g., by use `options(...)`?

Thanks!

Best, Lennart