refactor(unzip): import worker url

[dschmidt]

Depends on opencloud-eu/web#1412

[Copilot]

Pull Request Overview

This PR refactors the worker URL import in the unzip action composable by replacing the relative path import with a direct package import. The change simplifies the import statement and removes the need for runtime URL construction using urlJoin and dirname.

• Replaced relative file path import with direct package import using Vite's ?worker&url syntax
• Removed the now-unnecessary runtime URL construction logic

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[JammingBen]

Needs a new extension-sdk alpha release after opencloud-eu/web#1412 has been merged.

[JammingBen]

Thanks!