fix: add workerd condition to worker build

[mihar-22]

I was wrestling with an issue for one of our users as we couldn't get the Cloudflare build to bundle correctly. I noticed the conditions SvelteKit uses for bundling the Cloudflare Worker file was ['worker', 'browser']. We had workerd which was the documented condition that Wrangler uses. I thought this might be a better first condition then worker.

⚠️ I'd also add that I'm not sure if browser is a safe condition to include for the worker bundle. Browser code like window will throw and it's usually a compile-time check if (__BROWSER__) window.... Might be better to resort to things like server/node/default? We bundle our package with browser and then default for server files. Not sure what the standard here is, don't think one exists unfortunately or I haven't seen it.

Thanks!

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🦋 Changeset detected

Latest commit: 26b4628

The changes in this PR will be included in the next version bump.

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Name	Type
@sveltejs/adapter-cloudflare-workers	Patch
@sveltejs/adapter-cloudflare	Patch

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[benmccann]

It looks like I originally added worker in #8083. I'm not sure why or where I got that from or if it's still needed

browser was then added shortly after in the next PR #8122

[benmccann]

okay, it looks like workerd is a new thing and this PR is correct. It could be nice to link to what wrangler does. I've left comments for that. but besides that, this PR looks good to me

[teemingc]

Thank you!