feat: Improved compliance of Blob and Body

[nabetti1720]

Description of changes

Add the following methods to improve the compliance of Blob and Body Object.

• Blob.bytes() https://www.w3.org/TR/FileAPI/#bytes-method-algo

• Body.bytes() https://fetch.spec.whatwg.org/#dom-body-bytes

Checklist

• [x] Created unit tests in tests/unit and/or in Rust for my feature if needed
• [x] Ran make fix to format JS and apply Clippy auto fixes
• [x] Made sure my code didn't add any additional warnings: make check
• [x] Updated documentation if needed (API.md/README.md/Other)

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[richarddavison]

Thanks for the PR, awesome work

Im very surprised these APIs still don't work in browsers yet: await new Blob(["text"]).bytes()

[nabetti1720]

Hi, @richarddavison.

Yes, Since it was recently incorporated into the File API, I believe it will be supported in the future. https://github.com/w3c/FileAPI/pull/198

In addition, other Javascript runtimes seem to be progressing in their support.

Bun already supports it.

% bun -e "console.log(await new Blob(['text']).bytes());"
Uint8Array(4) [ 116, 101, 120, 116 ]

Deno seems to be trying to support exactly that. https://github.com/denoland/deno/pull/24148

I would like to help improve compliance with WinterCG and other standards as much as I can. :)