[Bug] OKF bundles index/subdirectories pointing to nowhere/null

[bindiego]

Taking samples/ga4 as an example, after I pushed the bundle to GCP Knowledge Catalog. Then navigate to ga4 root index I could see 3 Subdirectories:

• datasets - A sample of obfuscated Google Analytics BigQuery event export data for three months from the Google Merchandise Store is available as a public dataset in BigQuery.
• references - This directory contains specifications for data joins and definitions for user activity and purchase metrics.
• tables - Contains Google Analytics event export data from the ga4_obfuscated_sample_ecommerce dataset.

Click any of them will redirect to "URL not found" page.

Mouse over tables shows the link: https://console.cloud.google.com/tables/index.md