Purpose

This pull request (PR) significantly restructures the information architecture for the BloodHound docs site.

The overall structure is intended to follow typical BloodHound use:

1. Get started (what is this, how do I install it?)
2. Understand the core concepts (attack graphs, privilege zones, OpenGraph)
3. Collect data (set up collectors, run scans, manage schedules)
4. Analyze results (explore, query, posture metrics, accept findings)
5. Manage the platform (users, roles, compliance, security)
6. Extend and reference (API, integrations, schema, glossary)

These changes are important for improving UXnow, while also providing a scalable foundation for product growth and evolution.