uwasi instread of browser_wasi_shim

The current Ruby.Wasm is written with separate implementations for Node and Browser.
I can see considerable ingenuity and hard work. Thank you for all the work you have done. Now, I have found a way to solve this difficulty.
The swiftwasm team is developing uwasi, which seems to cover both Node and Browser implementations.
Asciidoctor-wasm implements DefaultRubyVM using this uwasi.

https://github.com/tani/asciidoctor-wasm/blob/f7a240f03c4d33d1235f68cda2497bda874988a0/src/asciidoctor.ts#L1-L21

If this implementation is adopted so that there is no need to separate the Browser and Node implementations, users will not have to distinguish between the Import of the Node and Browser implementations when using Ruby.wasm, which would be a great improvement. Please consider this.

Cheers

Confrontare le implementazioni separate per Node e Browser di Ruby.Wasm, in particolare l’uso di browser_wasi_shim, con l’implementazione collegata di DefaultRubyVM in asciidoctor.ts che utilizza uwasi. Il lavoro sarà completo quando sarà disponibile un’integrazione condivisa basata su uwasi che non richieda più agli utenti di distinguere tra gli import di Node e Browser, con il comportamento verificato in entrambi gli ambienti.