Cleaner BigQuery structured fields in Preview

[portalhacker]

Describe the feature

In the BigQuery UI, structured fields are displayed like regular columns.

However in the dbt-power-user preview these fields are displayed a single less readable object with multiple keys, like:

privacy_info
{"analytics_storage": null, "ads_storage": null, "uses_transient_token": "No"}

Moreover, when we have larger objects the column gets truncated, and we cannot see all values.

Please note this is issue is not about repeated fields (aka arrays) which may require even more thinking and work to manage.

Describe alternatives you've considered

Using a different extension, but without much success yet.

Who will benefit?

Every dbt-power-user working with structured data in BigQuery.

Are you willing to submit PR?

• [ ] Yes I am willing to submit a PR!