Adding LAW alerts to the Web policy initiative

[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 the following alerts to the Web policy initiative:
   • Deploy LA Workspace Daily Cap Limit Reached Alert
   • Deploy Activity Log LA Workspace Delete Alert
   • Deploy Activity Log LA Workspace Regenerate Key Alert
2. Updates related documentation

Breaking Changes

1. NONE

Testing evidence

Please provide any testing evidence to show that your Pull Request works/fixes as described and planned (include screenshots, if appropriate).

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.)