Uses wasm-pack as a library

[armfazh]

This makes use of the wasm-pack as a library rather than as a command. So there is no need to check whether is already installed, since it will be as is listed as a dependency.

[nilslice]

This is awesome, thank you! I will review ASAP.

[nilslice]

Hi @armfazh - sorry for the delay here. Currently blocked on some decisions on how to handle further integration of wasm-pack, or the possibility of removing it altogether in favor of more direct usage of wasm-bindgen, which is wrapped by wasm-pack. Just giving you an update!