Upgraded eslint and eslint plugins

[mxweaver]

Heyo! I noticed the eslint-related dependencies were a little out of date, so I upgraded them!

Changelog

• Upgraded these dependencies:
  • @typescript-eslint/eslint-plugin
  • @typescript-eslint/parser
  • babel-eslint
  • babel-jest
  • cross-env
  • eslint
  • eslint-config-react-app
  • eslint-import-resolver-typescript
  • eslint-plugin-flowtype
  • eslint-plugin-import
  • eslint-plugin-jsx-a11y
  • eslint-plugin-react
  • eslint-plugin-react-hooks
• Replaced babel-eslint with @babel/eslint-parser since babel-eslint is deprecated

[codesandbox-ci]

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Latest deployment of this branch, based on commit c893dd9:

Sandbox	Source
Vanilla	Configuration
Vanilla Typescript	Configuration

[markerikson]

Thank you!