Upgrade dependencies

[luizbaldi]

In order to make the library healthy and up-to-date, I've updated a bunch of dependencies that were outdated. The list goes below:

Patches:
@babel/cli: 7.4.3 ~> 7.6.2
@babel/core: 7.4.3 ~> 7.6.2
"@babel/plugin-proposal-class-properties: 7.4.0 ~> 7.5.5
@babel/plugin-transform-runtime: 7.5.0 ~> 7.6.2
@babel/preset-env: 7.4.3 ~> 7.6.2
@testing-library/jest-dom: 4.0.0 ~> 4.1.0
@types/jest: 24.0.15 ~> 24.0.18
babel-eslint: 10.0.2 ~> 10.0.3
babel-loader: 8.0.5 ~> 8.0.6
babel-plugin-styled-components: 1.10.0 ~> 1.10.6
eslint-plugin-react: 7.14.3 ~> 7.15.1
husky: 3.0.1 ~> 3.0.8
jest: 24.8.0 ~> 24.9.0
rimraf: 2.6.3 ~> 3.0.0
lint-staged: 9.2.1 ~> 9.4.1
react 16.8.2 ~> 16.10.1
react-dom: 16.8.2 ~> 16.10.1
styled-components: 4.1.3 ~> 4.4.0

Major updates:
@testing-library/react: 8.0.4 ~> 9.2.0 (I've basically removed cleanup-after-each from jest setup configuration)
cross-env: 5.2.0 ~> 6.0.3 (they've basically dropped support for node < 7)

There're outdated dependencies related to storybook that wasn't touched since we might improve it in the future.

Feel free to share thoughts on those changes, let me know if any changes are needed :)

[arturbien]

🎉 This PR is included in version 3.0.0-beta.1 🎉

The release is available on:

• npm package (@beta dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[arturbien]

🎉 This PR is included in version 3.0.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀