Change account gallery in web UI (#10667)

- 3 items per row instead of 2
- Use blurhash for previews
- Animate/hover-to-play GIFs and videos
- Open media modal instead of opening status
- Allow opening status instead with ctrl+click and open in new tab

app/javascript/mastodon/components/media_gallery.js

@@ -157,7 +157,7 @@ class Item extends React.PureComponent {
     if (attachment.get('type') === 'unknown') {
       return (
         <div className={classNames('media-gallery__item', { standalone })} key={attachment.get('id')} style={{ left: left, top: top, right: right, bottom: bottom, width: `${width}%`, height: `${height}%` }}>
-          <a className='media-gallery__item-thumbnail' href={attachment.get('remote_url')} target='_blank' style={{ cursor: 'pointer' }} >
+          <a className='media-gallery__item-thumbnail' href={attachment.get('remote_url')} target='_blank' style={{ cursor: 'pointer' }}>
             <canvas width={32} height={32} ref={this.setCanvasRef} className='media-gallery__preview' />
           </a>
         </div>