Update SelectWidget.tsx

[karaxuna]

[heath-freenome]

@karaxuna You need to do a few things to get this PR over the line to be merged:

1. Please update the CHANGELOG.md to add a line to the @rjsf/chakra-ui package describing the fix
2. Update the test snapshots for the package by running npm run test:update in the chakra-ui directory

Thanks!

[heath-freenome]

@karaxuna I played around with your fix locally and it makes things much worse. I'm not sure of the problem you are trying to solve here. Here is the current implementation in the playground:

And here is it with your fix. As you can see the dropdown is misplaced and below the other component

[heath-freenome]

@karaxuna Can you describe the issue you are trying to fix? If I don't hear from you, I may eventually just close this PR