Updated documentation

[Brunoga-MS]

Overview/Summary

Replace this with a brief description of what this Pull Request fixes, changes, etc.

This PR fixes/adds/changes/removes

1. Adds a new error message content to the existing VM Log Alert policies fail to remediate section in the Known Issue page
2. *Adds a new section for Failed to deploy because of 'location' property not specified error in the Known Issue page
3. • Adds the Switching between BYO UAMI and new UAMI ** in the Bring Your Own User Assigned Managed Identity (BYO UAMI) page*

All the above are related to the USer Story AMBA - Update Known Issues and BYO UAMI documentation

Breaking Changes

1. NONE

As part of this Pull Request I have

• Read the Contribution Guide and ensured this PR is compliant with the guide
• Checked for duplicate Pull Requests
• Associated it with relevant GitHub Issues or ADO Work Items (Internal Only)
• Ensured my code/branch is up-to-date with the latest changes in the main branch
• Ensured PR tests are passing
• Updated relevant and associated documentation (e.g. Contribution Guide, Docs etc.)

[arjenhuitema]

Thanks @Brunoga-MS, few comments, can you review? After that we should be good the merge!

[arjenhuitema]

LGTM.