Portal Fixes

[Springstone]

Overview/Summary

This pull request primarily involves updates to the eslzArm/eslz-portal.json and docs/wiki/Whats-new.md files. The changes include updates to the policy documentation, modifications to the eslz-portal.json file to make certain fields required, provide more detailed tooltips, and correct a typo.

Policy documentation updates:

• docs/wiki/Whats-new.md: Added a section for Policy Refresh FY23Q3 and updated the Audit-PrivateLinkDnsZones display name to include the fact it can be audit or deny.

eslz-portal.json modifications:

• Made the constraints field for Management subscription required.
• Updated the toolTip text for the "Enable DDoS Network Protection" field to include a link to DDoS Network Protection pricing.
• Corrected a typo in the text field of the options object.

Testing Evidence

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

Testing URLs

Azure Public

As part of this Pull Request I have

• [x] Checked for duplicate Pull Requests
• [x] Associated it with relevant issues, for tracking and closure.
• [x] Ensured my code/branch is up-to-date with the latest changes in the main branch
• [x] Performed testing and provided evidence.
• [x] Ensured contribution guidance is followed.
• [x] Updated relevant and associated documentation.
• [x] Updated the "What's New?" wiki page (located: /docs/wiki/whats-new.md)