Add Parquet and file streaming docs for CHJS

[slvrtrn]

• Updated client <-> ClickHouse versions
• Rearranged "web limitations"
• Add file streaming examples links
• Add Parquet to the support formats table

NB: I think that table is currently missing the "Output (Stream)" column, which will be added as a follow-up, as Parquet as text probably does not make much sense.

See also: ClickHouse/clickhouse-js#208

[robot-ch-test-poll1]

This is an automated comment for commit ac72777 with description of existing statuses. It's updated for the latest CI running

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[johnnymatthews]

Looks good! I'm not a huge fan of line character limits, but we don't have to update every page right now.