RFC: File Organization Convention for v9 Packages

[TristanWatanabe]

RFC for defining a convention on how files should be organized in v9 packages.

PREVIEW

Part of #24129

[fabricteam]

📊 Bundle size report

_{🤖 This report was generated against 1d0a72865a151962362aa3e5054ac9bf8178f09c}

[codesandbox-ci[bot]]

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Sandbox	Source
@fluentui/react 8 starter	Configuration
@fluentui/react-components 9 starter	Configuration

[size-auditor[bot]]

Asset size changes

Size Auditor did not detect a change in bundle size for any component!

Baseline commit: 27a3480f5361aa5d99f8978817d8395d9037e3b7 (build)