Describe the bug

When generating docs from source plugin it is expected to see all resources (even highly-nested ones) in the index.
However, only the top-level resources + 1st-level relations are shown.

Expected Behavior

All nested resources are present in the index.

Steps to Reproduce

Generate doc from provider that has relation underneath a relation.

Possible Solution

No response

Provider and CloudQuery version

current

Additional Context

No response