Upgrade to React 18

[kschiffer]

Summary

Upgrade to React 18.

Changes

• Update react and react-dom to @latest
• Refactor console.js and account.js accordingly.

Testing

Steps

This should not cause any noticeable changes.

Regressions

I've checked the breaking changes guide but it should be quite straightforward. CI should catch anything critical.

Checklist

• [x] Scope: The referenced issue is addressed, there are no unrelated changes.
• [x] Compatibility: The changes are backwards compatible with existing API, storage, configuration and CLI, according to the compatibility commitments in README.md for the chosen target branch.
• [x] Documentation: Relevant documentation is added or updated.
• [x] Testing: The steps/process to test this feature are clearly explained including testing for regressions.
• [x] Infrastructure: If infrastructural changes (e.g., new RPC, configuration) are needed, a separate issue is created in the infrastructural repositories.
• [x] Changelog: Significant features, behavior changes, deprecations and fixes are added to CHANGELOG.md.
• [x] Commits: Commit messages follow guidelines in CONTRIBUTING.md, there are no fixup commits left.

[kschiffer]

Unfortunately, this needs more refactoring, so I will close this now and reopen when we have more resources to address this.