OGG files render as audio files with preview

web/react/utils/constants.jsx

@@ -84,7 +84,7 @@ export default {
     SPECIAL_MENTIONS: ['channel'],
     CHARACTER_LIMIT: 4000,
     IMAGE_TYPES: ['jpg', 'gif', 'bmp', 'png', 'jpeg'],
-    AUDIO_TYPES: ['mp3', 'wav', 'wma', 'm4a', 'flac', 'aac'],
+    AUDIO_TYPES: ['mp3', 'wav', 'wma', 'm4a', 'flac', 'aac', 'ogg'],
     VIDEO_TYPES: ['mp4', 'avi', 'webm', 'mkv', 'wmv', 'mpg', 'mov', 'flv'],
     PRESENTATION_TYPES: ['ppt', 'pptx'],
     SPREADSHEET_TYPES: ['xlsx', 'csv'],