Support newer version of React, at least 17

[geocarlos]

It has become easier to add external dependencies to custom apps, and that is great. However it has been limited by the version of React below 17. I am using npm v8.6.0, and it npm install fails due to peer dependency conflict when installing a module that depends on higher version of React. If I run it with --legacy-peer-deps, it looks like it worked, but then when I run block run, I get an error that blocks-cli cannot be found.

[tomkerswill]

I would really like an update on this, too. I don't think Airtable are actively reviewing these issues, so I'm not sure of the best way to communicate this, though.