Update manage-email-notifications.md

[karacortez]

Please update to include notice about upcoming change to email notifications

[learn-build-service-prod]

Learn Build status updates of commit 8167773:

⚠️ Validation status: warnings

File	Status	Preview URL	Details
power-platform/admin/manage-email-notifications.md	⚠️Warning		Details

power-platform/admin/manage-email-notifications.md

• Line 16, Column 306: [Warning: hard-coded-locale - See documentation] Link 'https://learn.microsoft.com/en-us/power-platform/admin/use-service-admin-role-manage-tenant#assign-a-service-admin-role-to-a-user' contains locale code 'en-us'. For localizability, remove 'en-us' from links to most Microsoft sites.
• Line 16, Column 306: [Suggestion: docs-link-absolute - See documentation] Absolute link 'https://learn.microsoft.com/en-us/power-platform/admin/use-service-admin-role-manage-tenant#assign-a-service-admin-role-to-a-user' will be broken in isolated environments. Replace with a relative link.
• Line 26, Column 110: [Suggestion: preserve-view-not-set - See documentation] You've pinned this link to a specific version of content with the view parameter. It's recommended not to pin a version unless that version is A) not the default view and B) the context is about that version specifically. To proceed with pinning a version add the &preserve-view=true to the URL. Otherwise, remove the view parameter. URL: /powershell/module/microsoft.powerapps.administration.powershell/set-adminpowerappcdsadditionalnotificationemails?view=pa-ps-latest
• Line 33, Column 92: [Suggestion: preserve-view-not-set - See documentation] You've pinned this link to a specific version of content with the view parameter. It's recommended not to pin a version unless that version is A) not the default view and B) the context is about that version specifically. To proceed with pinning a version add the &preserve-view=true to the URL. Otherwise, remove the view parameter. URL: /powershell/module/microsoft.powerapps.administration.powershell/get-adminpowerappcdsadditionalnotificationemails?view=pa-ps-latest

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