feat: replace _redirects workaround with preferStatic

[Skn0tt]

It's important that the SSR function matches all paths, except for the ones that have static files. In the past, _redirects was the way to achieve that - but with V2 Functions, in-source-config is much easier to reason about. Now that we have preferStatic, we can scratch the _redirects workaround and use in-source-config instead!

Keeping this as draft until i've manually verified that it works as intended. One of the challenges is that the Remix compiler will turn true into !0, but https://github.com/netlify/zip-it-and-ship-it/pull/1665 should help us handle that.

[netlify[bot]]

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[netlify[bot]]

✅ Deploy Preview for remix-on ready!

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[Skn0tt]

Oh hey, there's deploy previews for this site - neat! Looks like it's working alright :D

[Skn0tt]

We've started deleting .netlify/functions-internal on startup of netlify dev - so no, that won't happen!

[ascorbic]

I've not tested this, but approving on the basis that you've tested the template in dev locally