This is not a feature request.
Steps to Reproduce
Edit: This seems to not be reproducible on Chrome/Chromium. Not sure what others, but is reproducible on Firefox.
- Navigate to https://webpack.js.org/plugins/terser-webpack-plugin/#options
- Scroll to the bottom of the options table
- Try to scroll the options table horizontally
- Notice you cannot do it, because the next heading covers it.

Additional information
This seems to be site-wide, though the issue only pops up here and there.
[] I am willing to work on this issue and submit a pull request.