feat: Add Troubleshooting Guide for Log Analytics Workspace Deletion Issues

[Abdul-Microsoft]

Purpose

• This pull request improves the deployment documentation for scenarios where Log Analytics workspace replication is enabled. The most important changes update the workflow to prevent resource deletion failures and provide clear instructions for disabling replication.

Documentation improvements for Log Analytics workspace deletion:

• Added a new guide docs/LogAnalyticsReplicationDisable.md that explains how to disable redundancy (replication) for Log Analytics workspaces before deletion, including CLI commands and verification steps.

Updates to deployment workflow:

• Updated the docs/DeploymentGuide.md to include a note that if redundancy is enabled and replication is active, replication must be disabled before running azd down, with a link to the new guide for step-by-step instructions.

Does this introduce a breaking change?

• Yes
• No

Golden Path Validation

• I have tested the primary workflows (the "golden path") to ensure they function correctly without errors.

Deployment Validation

• I have validated the deployment process successfully and all services are running as expected with this change.

What to Check

Verify that the following are valid

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