Fix layout of column summary

[softwarenerd]

Positron Version:

Steps to reproduce the issue:

1. Open data explorer on qa-example-content/data-files/100x100/100x100.parquet.

import pandas as pd
pandas100x100 = pd.read_parquet('/Users/brian/Work/qa-example-content/data-files/100x100/100x100.parquet')

2. Scroll the table summary panel downwards until you see that there are layout issues in this view.

What did you expect to happen?

I expected a clean layout with truncated column names with ellipses.

Were there any error messages in the Output panel or Developer Tools console?

No.

[petetronic]

Closing as a duplicate of #4301