Fix handling of audio files in account media gallery (#11629)

Fixes #11627

app/javascript/mastodon/features/account_gallery/components/media_item.js

@@ -96,6 +96,12 @@ export default class MediaItem extends ImmutablePureComponent {
 
     if (attachment.get('type') === 'unknown') {
       // Skip
+    } else if (attachment.get('type') === 'audio') {
+      thumbnail = (
+        <span className='account-gallery__item__icons'>
+          <Icon id='music' />
+        </span>
+      );
     } else if (attachment.get('type') === 'image') {
       const focusX = attachment.getIn(['meta', 'focus', 'x']) || 0;
       const focusY = attachment.getIn(['meta', 'focus', 'y']) || 0;

app/javascript/mastodon/features/account_gallery/index.js

@@ -100,7 +100,7 @@ class AccountGallery extends ImmutablePureComponent {
   }
 
   handleOpenMedia = attachment => {
-    if (attachment.get('type') === 'video') {
+    if (['video', 'audio'].includes(attachment.get('type'))) {
       this.props.dispatch(openModal('VIDEO', { media: attachment, status: attachment.get('status') }));
     } else {
       const media = attachment.getIn(['status', 'media_attachments']);