chore(deps): add react 17 to peer deps

[Zertz]

This will suppress messages similar to this:

warning "recharts > react-smooth@1.0.6" has incorrect peer dependency "react@^15.0.0 || ^16.0.0".
warning "recharts > react-smooth@1.0.6" has incorrect peer dependency "react-dom@^15.0.0 || ^16.0.0".

[bradtgmurray]

FYI I also made the same change in #47 and confirmed that npm demo was happy when running with react 17.

[semoal]

@xile611 can we move this to base branch please?

[Zertz]

Without the ability to run Enzyme tests with React 17, it's understandable the maintainers may not want to merge this just yet.

On our end, it's just the minor annoyance of a few warnings.

[semoal]

Without the ability to run Enzyme tests with React 17, it's understandable the maintainers may not want to merge this just yet.

On our end, it's just the minor annoyance of a few warnings.

That's not a problem.
#48
I've refactored the testing suite to use jest with testing-library and React 17, tests passed correctly and everything is working fine.

;)

[cmmartin]

Is this released? I'm getting an error using the latest version of recharts with react 17.

npm ERR! Could not resolve dependency:
npm ERR! peer react@"^15.0.0 || ^16.0.0" from react-smooth@1.0.6

npm -v
7.0.15

[semoal]

This not released yet. Sorry