How to prevent visOptions selectBy from reducing the space for the network

[RiboRings]

Hi!

Thanks a lot for this user-friendly tool to visualise nets!

I am using visNetwork to build an app for my R package which contains a network dataset. I would like to visualise this network full screen in my app, while also providing a selectBy input button to highlight certain nodes.

However, the selectBy button is cutting a big horizontal chunk of the screen space, even though the button itself doesn't need that much space. Is there a way to make the rest of the space next to the button transparent, so that the network is visible there as well?

Here is a link to my app: https://github.com/Minotau-R/ariadneApp/blob/devel/R/app.R

And this is an example of what I mean:

Thanks in advance and cheers!