Updated all basic components

removed unnecessary components, combined where necessary
added each component to a folder, added individual css style modules
optimized some component rendering flows
removed functional components in favor of pure components
linted and formatted all of the files

app/javascript/gabsocial/components/icon.js

@@ -1,19 +0,0 @@
-import classNames from 'classnames';
-
-export default class Icon extends PureComponent {
-
-  static propTypes = {
-    id: PropTypes.string.isRequired,
-    className: PropTypes.string,
-    fixedWidth: PropTypes.bool,
-  };
-
-  render () {
-    const { id, className, fixedWidth, ...other } = this.props;
-
-    return (
-      <i role='img' alt={id} className={classNames('fa', `fa-${id}`, className, { 'fa-fw': fixedWidth })} {...other} />
-    );
-  }
-
-}