Expose getFileTypeIconAsURL helper for react-file-type-icons

[NotWoods]

Previous Behavior

File Type Icons can't be used with Fluent 9 unless you import Fluent 8 <Icon /> or use React to dangerously set inner HTML.

New Behavior

Expose a new helper method so Fluent 9 code can use <img src={getFileTypeIconAsURL()} />.

Related Issue(s)

• Fixes #

[fabricteam]

📊 Bundle size report

_{🤖 This report was generated against c0214bcb7d9369db75eb842adf4253893bc0e160}

[paulgildea]

cc: @behowell for visibility

[size-auditor[bot]]

Asset size changes

⚠️ Insufficient baseline data to detect size changes

Unable to find bundle size details for Baseline commit: ab901891c51f8bd5d1a5099e66011c9c84372566

Possible causes

• The baseline build ab901891c51f8bd5d1a5099e66011c9c84372566 is broken
• The Size Auditor run for the baseline build ab901891c51f8bd5d1a5099e66011c9c84372566 was not triggered

Recommendations

• Please merge your branch for this Pull request with the latest master build and commit your changes once again

[codesandbox-ci[bot]]

This pull request is automatically built and testable in CodeSandbox.

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Latest deployment of this branch, based on commit acf0be697c588923e8092efd97288dc5f755df7a:

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

[paulgildea]

@micahgodbolt is this something to help with while Ben is oof? cc: @grace-zou

[micahgodbolt]

/azp run

[azure-pipelines[bot]]

Azure Pipelines successfully started running 4 pipeline(s).

[tomi-msft]

I have approved and merged this PR: #27336. Can you pull from master and update this PR?