Not all options visible

[benzler]

When using a file with a lot of tables depending on the screen size not all options are visible. See

as you can see on the second screenshot when screenheight is small the first two options are not visible.

Steps to reproduce: Take a file with 9 tables in it and upload it on the demo.

[benzler]

As the maintainer of this repository does not have the time to implement the fix in time, I forked the repo and fixed it: https://www.npmjs.com/package/@benzler/react-spreadsheet-import