fix: integrate web3auth in demo app

[bengobeil]

Description

As per previously discussed, integrate new web3auth package in demo app. I added React as a dependency, since demo it is executed as opposed to being a package, wouldn't work otherwise.

PLEASE NOTE- Checklist must be complete prior to review.

Checklist

• [x] Increment the version field in package.json of the package you have made changes in following semantic versioning and using alpha release tagging
• [x] Check the box that allows repo maintainers to update this PR
• [x] Test locally to make sure this feature/fix works
• [x] Run yarn check-all to confirm there are not any associated errors
• [x] Confirm this PR passes Circle CI checks
• [x] Add or update relevant information in the documentation

Docs Checklist

• [x] Include a screenshot of any changes (see docs README on running locally)
• [x] Add/update the appropriate package README (if applicable)
• [x] Add/update the related module in the docs demo (if applicable)
• [x] Add/update the related package in the docs/package.json file (if applicable)

If this PR includes changes to add an injected wallet or SDK wallet module:

Please complete the following using the internal demo package. To run this demo use the command yarn && yarn dev to get the project running at http://localhost:8080/

Tests with demo app (injected)

• [ ] send transaction
• [ ] switch chains
• [ ] sign message
• [ ] sign typed message
• [ ] disconnect

Tests with demo app (SDK)

• [x] send transaction
• [x] switch chains
• [x] sign message
• [x] sign typed message
• [x] disconnect

[bengobeil]

[bengobeil]

@Adamj1232 ready for review

[bengobeil]

Hey @Adamj1232, it seems as though calling setChain on the useSetChain hook when connected to web3auth wallet does not update the provider in the useConnectWallet hook. I'm not familiar with the codebase enough to fix this, I've been taking a look at day and it seems as though web3auth is not integrate with the rx/js based state, not sure about this. Would it be possible to take a look and point me in the right direction?