Added data-column="{account|local|federated|favourites|hashtag|home|notifications|mutes|blocks|getting-started|follow-requests}" to Column

app/javascript/mastodon/components/column.js

@@ -8,6 +8,7 @@ export default class Column extends React.PureComponent {
   static propTypes = {
     children: PropTypes.node,
     extraClasses: PropTypes.string,
+    name: PropTypes.string,
   };
 
   scrollTop () {
@@ -41,10 +42,10 @@ export default class Column extends React.PureComponent {
   }
 
   render () {
-    const { children, extraClasses } = this.props;
+    const { children, extraClasses, name } = this.props;
 
     return (
-      <div role='region' className={`column ${extraClasses || ''}`} ref={this.setRef}>
+      <div role='region' data-column={name} className={`column ${extraClasses || ''}`} ref={this.setRef}>
         {children}
       </div>
     );