URL path parts for section content

When clicking on a section in the left nav, content loads. However, the URL doesn't accurately (from a user perspective) reflect the "path" and exposes the underlying implementation details.

For example, open a browser tab, and go to this page: https://main--prisma-cloud-docs-website--hlxsites.hlx.live/prisma/prisma-cloud/en/enterprise-edition/content-collections/governance/governance

From the left nav, the path to the page appears to be: `Enterprise Edition > Content Collections > Governance`

However, the URL path is `enterprise-edition/content-collections/governance/governance`

The URL path should be `enterprise-edition/content-collections/governance`

Start by tracing how the left-nav section click constructs the URL path, using the example URL in the issue as the reproduction. Done means the Governance page URL is `enterprise-edition/content-collections/governance` rather than ending with the duplicated `governance` segment.

Written by the indexing model from the issue text.