[SPARK-46188][Doc][3.5] Fix the CSS of Spark doc's generated tables #44097
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What changes were proposed in this pull request?
After #40269, there is no border in the generated tables of Spark doc(for example, https://spark.apache.org/docs/latest/sql-ref-ansi-compliance.html) . This PR is to fix it by restoring part of the table style in https://github.com/apache/spark/pull/40269/files#diff-309b964023ca899c9505205f36d3f4d5b36a6487e5c9b2e242204ee06bbc9ce9L26
This PR also unifies all the styles of tables by removing the
class="table table-striped"in HTML style tables in markdown docs.Why are the changes needed?
Fix a regression in the table CSS of Spark docs
Does this PR introduce any user-facing change?
No
How was this patch tested?
Manually build docs and verify.

Before changes:
After changes:

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