Update support of run_worker_first

[petebacondarwin]

Summary

Small docs update to Vite Plugin

Documentation checklist

• The documentation style guide has been adhered to.
• If a larger change - such as adding a new page- an issue has been opened in relation to any incorrect or out of date information that this PR fixes. N/A
• Files which have changed name or location have been allocated redirects. N/A

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PR Change Summary

Updated documentation to reflect support for the 'run_worker_first' feature in the Vite Plugin.

• Clarified that 'run_worker_first' is now supported during build, preview, and deploy time.
• Updated Wrangler config instructions to include 'run_worker_first' option.

Modified Files

• src/content/docs/workers/vite-plugin/reference/static-assets.mdx

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[github-actions]

Preview URL: https://04438257.preview.developers.cloudflare.com
Preview Branch URL: https://pbd-vite-plugin-run-worker-first.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/workers/vite-plugin/reference/static-assets/	https://pbd-vite-plugin-run-worker-first.preview.developers.cloudflare.com/workers/vite-plugin/reference/static-assets/

[jamesopstad]

I don't think we should be documenting this at this stage. _headers and _redirects make sense as build time only but run_worker_first doesn't as the behaviour in dev would be very different. I mentioned this in #20481 (comment) and was planning on adding a warning if run_worker_first is enabled.