Use VBA product-level header

[raprice]

This content needs to use a VBA product-level header; this PR adds that header to this docset.

Please note: I have drafted a VBA header on your behalf, which can be reviewed separately. Feel free to propose any changes to the header by opening a PR on that file. Headers should be iterated over time to reflect user and content needs, so frequent updates are encouraged. Here are the guidelines for L2 headers: https://review.learn.microsoft.com/en-us/help/platform/navigation-product-level-header-overview?branch=main

[learn-build-service-prod]

Learn Build status updates of commit bc808ed:

💡 Validation status: suggestions

File	Status	Preview URL	Details
docfx.json	💡Suggestion		Details

docfx.json

• Line 46, Column 49: [Suggestion: duplicate-descriptions - See documentation] Attribute 'description' with value 'Office VBA reference topic' is duplicated in 'docfx.json(46,49)', 'docfx.json(46,49)', 'docfx.json(46,49)', 'docfx.json(46,49)', 'docfx.json(46,49)'....

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

[lindalu-MSFT]

Thanks, Rachel!