Tables on datafusion website show extra outline #18189
Description
Describe the bug
After #18157 bumped our pydata-sphinx-theme version, seeing this artifact:
- Desktop firefox: https://datafusion.apache.org/user-guide/expressions.html
Ideally don't want those lines extending beyond the actual table
To Reproduce
No response
Expected behavior
No response
Additional context
Something to do with CSS here? https://github.com/apache/datafusion/tree/main/docs