Large update for all components

reorganization, linting, updating file imports, consolidation
warning: there will be errors in this commit
todo: update webpack, add missing styles, scss files, consolidate the rest of components within features/*

app/javascript/gabsocial/components/column/index.js

@@ -1,20 +1 @@
-import './index.scss';
-
-export default class Column extends PureComponent {
-
-  static propTypes = {
-    children: PropTypes.node,
-    label: PropTypes.string,
-  };
-
-  render () {
-    const { label, children } = this.props;
-
-    return (
-      <div role='region' aria-label={label} className='column'>
-        {children}
-      </div>
-    );
-  }
-
-}
+export { default } from './column';