[Glitch] Add missing video descriptions

Port ac092d03e7 to glitch-soc

app/javascript/flavours/glitch/components/extended_video_player.js

@@ -50,6 +50,7 @@ export default class ExtendedVideoPlayer extends React.PureComponent {
           role='button'
           tabIndex='0'
           aria-label={alt}
+          title={alt}
           muted={muted}
           controls={controls}
           loop={!controls}

app/javascript/flavours/glitch/components/media_gallery.js

@@ -174,6 +174,7 @@ class Item extends React.PureComponent {
           <video
             className={`media-gallery__item-gifv-thumbnail${letterbox ? ' letterbox' : ''}`}
             aria-label={attachment.get('description')}
+            title={attachment.get('description')}
             role='application'
             src={attachment.get('url')}
             onClick={this.handleClick}

app/javascript/flavours/glitch/components/status.js

@@ -412,6 +412,7 @@ export default class Status extends ImmutablePureComponent {
             {Component => (<Component
               preview={video.get('preview_url')}
               src={video.get('url')}
+              alt={video.get('description')}
               inline
               sensitive={status.get('sensitive')}
               letterbox={settings.getIn(['media', 'letterbox'])}

app/javascript/flavours/glitch/features/report/components/status_check_box.js

@@ -36,6 +36,7 @@ export default class StatusCheckBox extends React.PureComponent {
               <Component
                 preview={video.get('preview_url')}
                 src={video.get('url')}
+                alt={video.get('description')}
                 width={239}
                 height={110}
                 inline

app/javascript/flavours/glitch/features/status/components/detailed_status.js

@@ -60,6 +60,7 @@ export default class DetailedStatus extends ImmutablePureComponent {
           <Video
             preview={video.get('preview_url')}
             src={video.get('url')}
+            alt={video.get('description')}
             inline
             sensitive={status.get('sensitive')}
             letterbox={settings.getIn(['media', 'letterbox'])}

app/javascript/flavours/glitch/features/video/index.js

@@ -323,6 +323,7 @@ export default class Video extends React.PureComponent {
           role='button'
           tabIndex='0'
           aria-label={alt}
+          title={alt}
           width={width}
           height={height}
           onClick={this.togglePlay}