Move files to match published URL paths

- device-guides/august-locks → device-and-system-integration-guides/
- device-guides/kwikset-locks → device-and-system-integration-guides/
- device-guides/noiseaware-sensors → device-and-system-integration-guides/
- device-guides/salto-locks → device-and-system-integration-guides/
- access-systems/suspending-and-unsuspending-users → access-systems/user-management/

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: louis-pre