fix: copy .ttf files during build

[XiSenao]

fixes #11220

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[benmccann]

Assuming this is necessary, I expect other adapters would need the same fix. We should fix them all together so that we don't leave some behind

[XiSenao]

Assuming this is necessary, I expect other adapters would need the same fix. We should fix them all together so that we don't leave some behind

This may require a little modification, and it seems that the way vite calls esbuild in the pre-build stage can be used as a reference.

https://github.com/vitejs/vite/blob/main/packages/vite/src/node/optimizer/esbuildDepPlugin.ts#L131-L285

[eltigerchino]

eltigerchino/svelte-og-image#1 (comment) for context. I think we'd need to change the esbuild settings to copy .ttf files for cloudflare, cloudflare workers, vercel, and netlify (am I missing any other adapters?).

We could also configure it to use the copy loader for all the same asset types that Vite recognises but I'm only certain that the font asset types are included in most packages.

I'm also in favour of removing the default filename hashing behaviour (or providing a way to turn it off?) but maybe that's a separate issue because I'm not sure if that would disrupt build caches.