[Glitch] Add single-column mode

Port 9ddeb30f90 to glitch-soc

Signed-off-by: Thibaut Girka <thib@sitedethib.com>

app/javascript/flavours/glitch/features/ui/components/columns_area.js

@@ -5,7 +5,7 @@ import ImmutablePropTypes from 'react-immutable-proptypes';
 import ImmutablePureComponent from 'react-immutable-pure-component';
 
 import ReactSwipeableViews from 'react-swipeable-views';
-import { links, getIndex, getLink } from './tabs_bar';
+import TabsBar, { links, getIndex, getLink } from './tabs_bar';
 import { Link } from 'react-router-dom';
 
 import BundleContainer from '../containers/bundle_container';
@@ -139,7 +139,7 @@ export default class ColumnsArea extends ImmutablePureComponent {
       <ColumnLoading title={title} icon={icon} />;
 
     return (
-      <div className='columns-area' key={index}>
+      <div className='columns-area columns-area--mobile' key={index}>
         {view}
       </div>
     );
@@ -164,13 +164,17 @@ export default class ColumnsArea extends ImmutablePureComponent {
       const floatingActionButton = shouldHideFAB(this.context.router.history.location.pathname) ? null : <Link key='floating-action-button' to='/statuses/new' className='floating-action-button' aria-label={intl.formatMessage(messages.publish)}><i className='fa fa-pencil' /></Link>;
 
       return columnIndex !== -1 ? [
+        <TabsBar key='tabs' />,
+
         <ReactSwipeableViews key='content' index={columnIndex} onChangeIndex={this.handleSwipe} onTransitionEnd={this.handleAnimationEnd} animateTransitions={shouldAnimate} springConfig={{ duration: '400ms', delay: '0s', easeFunction: 'ease' }} style={{ height: '100%' }} disabled={!swipeToChangeColumns}>
           {links.map(this.renderView)}
         </ReactSwipeableViews>,
 
         floatingActionButton,
       ] : [
-        <div className='columns-area'>{children}</div>,
+        <TabsBar key='tabs' />,
+
+        <div key='content' className='columns-area columns-area--mobile'>{children}</div>,
 
         floatingActionButton,
       ];