Rust bindings wasm2js update for /wallet package

[Ivan-Mahda]

Purpose

Previously, support for the react-native platform was limited.
This is because wasm was not supported in react-native.
This update adds conversion of the necessary modules to JS to support the full functionality of this library in combination with react-native.

Changes

Additional step of converting wasm to js, for use with react-native
Updated webpack config and build scripts

Checklist

• My code follows the style of this project.
• The code compiles without warnings.
• I have performed a self-review of the changes.
• I have documented my code, in particular the intent of the
  hard-to-understand areas.
• (If necessary) I have updated the CHANGELOG.

[soerenbf]

First of all, great work getting this to work! I assume you've tested this with a local project?

Other than that, please update the example at examples/reactnative with something from @concordium/web-sdk/wasm to ensure that it builds successfully in CI. It doesn't matter which function, just an arbitrary one that utilizes @concordium/rust-bindings/wallet.

It would be nice to also have it actually working when you run the application locally, but if that is too much to fit in, it will also suffice to add an issue to do this.

Lastly, I think we should plan a minor version release to get this out ASAP.

[soerenbf]

Also, please ensure that the CI checks pass before merging.

[soerenbf]

Looks good, thanks for updating the example! 🥇