Update destination URL for flutter.dev/go/windows-arm64

[loic-sharma]

Update the go link as the design doc was moved to a new owner.

cc @p-b-o

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[gemini-code-assist]

Code Review

This pull request updates the destination URL for the /go/windows-arm64 redirect in firebase.json. Feedback was provided suggesting the restoration of the fragment identifier from the previous URL to maintain deep linking to the relevant document section.

[flutter-website-bot]

Visit the preview URL for this PR (updated for commit 66bcfc8):

https://flutter-docs-prod--pr13224-loic-sharma-patch-1-jb2qk8kj.web.app

[p-b-o]

Thanks for updating it @loic-sharma.