feat(wasm): Upgrade WASM node tutorial to use node 20

[bsmth]

Fixes #27989

• Target node 20
• Upgrade packages in package.json
• add experiments: {asyncWebAssembly: true,} to webpack config
• minor update to path as http://localhost:8080 alone won't show the index added copy-webpack-plugin

other changes:

• highlight which index.html file is new

tests:
I ran through this tutorial recently, so I can confirm following the steps worked well with Node 16, but this is EOL soon. Ran this locally, works as expected:

[github-actions]

Preview URLs

• /en-US/docs/WebAssembly/Rust_to_Wasm

External URLs (6)

URL: /en-US/docs/WebAssembly/Rust_to_Wasm
Title: Compiling from Rust to WebAssembly

• https://docs.npmjs.com/cli/v10/commands/npm-adduser (1 time) (Note! This may be a new URL 👀)
• https://docs.npmjs.com/cli/v10/commands/npm-link (1 time) (Note! This may be a new URL 👀)
• https://github.com/nvm-sh/nvm (1 time) (Note! This may be a new URL 👀)
• https://github.com/rustwasm/team/blob/master/README.md (1 time) (Note! This may be a new URL 👀)
• https://rustwasm.github.io/docs/wasm-pack/commands/build.html (1 time) (Note! This may be a new URL 👀)
• https://www.npmjs.com/ (1 time) (Note! This may be a new URL 👀)

(comment last updated: 2024-01-11 17:16:01)

[hamishwillee]

I don't feel particularly expert in this. @Josh-Cena are you reviewing testing this? If not then I'll put some effort in.

[Josh-Cena]

I'm not particularly familiar with Webpack either. LGTM at a glance but would appreciate some tests

[bsmth]

LGTM at a glance but would appreciate some tests

Should I put the example code in a repo somewhere?

[bsmth]

Example code checked in here if you would like to try it out: mdn/webassembly-examples#33

[bsmth]

Hi @Josh-Cena - just an FYI there's a demo checked in here for a sanity check on these changes: https://github.com/bsmth/webassembly-examples/tree/wasm-node/rust-node

[Josh-Cena]

Sorry, I don't have the capacity to actually review this. Would be great if @hamishwillee can help

[bsmth]

Sorry, I don't have the capacity to actually review this.

Not a problem, thanks for the heads up!

[hamishwillee]

I will have the capacity one day, but not until I have cleared my FF queue - it's "non core". YOu can keep pinging me or find someone else. I am keeping it on my list though.

[dipikabh]

I've only done a quick language proofread and it looks good overall 👍
Leaving my +1.

Thank you for updating these docs!!

[bsmth]

Thank you!