Rewrite follower/following lists (FollowList component)

FollowList component is based on UserCard component. UserCard component is complex and difficult to understand because it mixes multiple business logic not used at the same time.

In this MR (!578 (merged)), I introduced a new reusable BasicUserCard component which has no business logic except toggling view and several higher order components to reduce code repetition and improve code organization.

This issue is to refactor FollowList component using them.