J crew0/updating theme doc

[JCrew0]

This PR updates the File-Browser configuration to include theme support.

[learn-build-service-prod[bot]]

Learn Build status updates of commit a3b173a:

:bulb: Validation status: suggestions

File	Status	Preview URL	Details
docs/controls/file-browser/v8-schema.md	:bulb:Suggestion	View (>= odsp-graph-online)	Details

docs/controls/file-browser/v8-schema.md

• Line 2, Column 1: [Suggestion: description-missing - See documentation] Missing required attribute: 'description'.

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[bot]]

Learn Build status updates of commit 486b2d6:

:bulb: Validation status: suggestions

File	Status	Preview URL	Details
docs/controls/file-browser/v8-schema.md	:bulb:Suggestion	View (>= odsp-graph-online)	Details

docs/controls/file-browser/v8-schema.md

• Line 2, Column 1: [Suggestion: description-missing - See documentation] Missing required attribute: 'description'.

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