Category Header
The Category Header component renders a category header composed of category's cover, title, slogan and
a followers section followed by a button that allows users to follow/unfollow the category.
Usage
 import React from 'react';
 import {SCContextProvider} from '@selfcommunity/react-core';
 import {CategoryHeader} from '@selfcommunity/react-ui';
 function App() {
   const conf = {
     portal: '<community-path>',
     session: {
       type: 'OAuth',
       token: '<community-token>',
       refreshToken: '<community-refresh-token>',
       refreshTokenEndpoint: '<community-refresh-endpoint>',
     },
   };
   return (
     <SCContextProvider conf={conf}><CategoryHeader /></SCContextProvider>
   );
 }