Packages upgraded

[luissardon]

Mayor Upgrades

• react-redux 7
• @types/next 8
• babel-jest 24
• fork-ts-checker-webpack-plugin 1
• husky 3
• lint-staged 9
• stylelint 10
• stylelint-config-prettier 5
• ts-node 8
• tslint-react 4

Other

• fixed withPlugins typo
• babel-core package removed due to @babel/core dependency
• Configuration files formatted to improve readability

[sanjaytwisk]

@luissardon please keep your PR clean and contained, or use multiple commits for different chores / changes.