Another 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 group page components.

app/javascript/gabsocial/components/column_settings_heading/column_settings_heading.js

@@ -0,0 +1,16 @@
+import './column_settings_heading.scss';
+
+export default class ColumnSettingsHeading extends PureComponent {
+  static propTypes = {
+    heading: PropTypes.object.isRequired,
+    id: PropTypes.string,
+  };
+
+  render() {
+    const { heading } = this.props;
+
+    return (
+      <span id={id} className='column-settings-heading'>{heading}</span>
+    )
+  }
+}

app/javascript/gabsocial/components/column_settings_heading/column_settings_heading.scss

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+.column-settings-heading {
+  display: block;
+  color: $darker-text-color;
+  cursor: default;
+  font-weight: 500;
+  margin-bottom: 10px;
+}

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

@@ -0,0 +1 @@
+export { default } from './column_settings_heading';