feat #38 - Add eslint and fix lint errors & warnings (#39)

* Feat #38 - Add typescript Eslint plugins & .eslintrc.js

src/components/Button/index.tsx

@@ -2,7 +2,6 @@ import 'antd/lib/button/style/index.css'
 import { Button as AntDButton } from 'antd'
 import { ButtonProps as AntDButtonProps } from 'antd/es/button'
 import classnames from 'classnames'
-
 import React, { FC, ReactNode } from 'react'
 
 export interface ButtonProps {