Move wasm-pack to js dependency

[rotu]

I found that building this locally failed due to a missing dependency on wasm-pack. Added the npm version of this package as a dev dependency.

npm run build

> ezno@0.0.22 build
> wasm-pack build --dev --out-dir src/js-cli-and-library/build --target web --no-pack && npm run build-js

sh: wasm-pack: command not found

[kaleidawave]

🤦‍♂️ I often install global for these tools and then forget when I publish them.

Awesome, am away for laptop this week. Will double check and merge next week.

[rotu]

@kaleidawave don't forget about this PR, please!

[kaleidawave]

Thanks for the change! Also good that this removes some steps in CI.

The formatting error in CI is because of an update to rustfmt in the latest Rust release. Will fix in dedicated PR.