Support content diff for parquet files

[isaac-jordan]

If I make a change to a Parquet file in a commit, and then look at the commit diff in the UI, I'd like to be able see what was changed in the parquet file.

As an example of the current experience, here is what a parquet file changed in a commit looks like (in this case totally deleted):

In this example, I'd maybe expect a view of the Parquet file (similar to the DuckDB integration) showing the contents of the file that was deleted. Similar to what you get if viewing one of those text formats, e.g. snippet of JSON being added below:

Example scenarios:

• new rows added,
• some rows deleted,
• cell values changed,
• columns added
• columns deleted.

Originally asked on Slack: https://lakefs.slack.com/archives/C016726JLJW/p1734620253055009