[Outlook] (manifest) update for unified support of mobile and web

[Rick-Kirkham]

This update can be reviewed now, but will not be merged until the GA of the unified manifest for Outlook add-ins.

Fixes 4457

[learn-build-service-prod]

Learn Build status updates of commit 027a4bf:

⚠️ Validation status: warnings

File	Status	Preview URL	Details
docs/develop/json-manifest-overview.md	⚠️Warning	View	Details
docs/develop/unified-manifest-overview.md	✅Succeeded	View

docs/develop/json-manifest-overview.md

• Line 104, Column 41: [Warning: bookmark-not-found] Cannot find bookmark '#sample-preview-unified-manifest' in 'develop/unified-manifest-overview.md'.

For more details, please refer to the build report.

Note: Your PR may contain errors or warnings or suggestions unrelated to the files you changed. This happens when external dependencies like GitHub alias, Microsoft alias, cross repo links are updated. Please use these instructions to resolve them.

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[learn-build-service-prod]

Learn Build status updates of commit 322e4ab:

⚠️ Validation status: warnings

File	Status	Preview URL	Details
docs/develop/json-manifest-overview.md	⚠️Warning	View	Details
docs/develop/unified-manifest-overview.md	✅Succeeded	View

docs/develop/json-manifest-overview.md

• Line 104, Column 41: [Warning: bookmark-not-found] Cannot find bookmark '#sample-preview-unified-manifest' in 'develop/unified-manifest-overview.md'.

For more details, please refer to the build report.

Note: Your PR may contain errors or warnings or suggestions unrelated to the files you changed. This happens when external dependencies like GitHub alias, Microsoft alias, cross repo links are updated. Please use these instructions to resolve them.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[learn-build-service-prod]

Learn Build status updates of commit 1a1e173:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/develop/json-manifest-overview.md	✅Succeeded	View
docs/develop/unified-manifest-overview.md	✅Succeeded	View

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[learn-build-service-prod]

Learn Build status updates of commit 2ba5256:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/develop/json-manifest-overview.md	✅Succeeded	View
docs/develop/unified-manifest-overview.md	✅Succeeded	View

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[learn-build-service-prod]

Learn Build status updates of commit c0ae7e6:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/develop/json-manifest-overview.md	✅Succeeded	View
docs/develop/unified-manifest-overview.md	✅Succeeded	View

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel