'Tune' Menu Gets Cut Off When On The Right

Hi all,

First of all, thank you for this amazing library.

I noticed that on some widths, I think between 650px and 750px, the plus icon moves to the right of the editor and causes the 'tune' menu to be cut off and therefore to be unusable:

These are pretty common widths to use with the editor, so hopefully this is something that can be fixed (or maybe someone knows a solution already?)

Thanks!