Add MessageExtensions.AttachmentLayout type with grid support#193

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Copilot wants to merge 6 commits intomainfrom

copilot/update-attachment-layout-options

Commits on Oct 24, 2025

Commits on Oct 25, 2025

Remove AttachmentTests.cs as requested

Copilot
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heyitsaamir
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Commits on Oct 30, 2025

Revert Attachment.Layout and introduce MessagingExtensionAttachmentLayout

Copilot
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heyitsaamir
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Commits on Nov 10, 2025

Add README for MessageExtensions sample with Teams manifest setup instructions

Copilot
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rido-min
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