message: Don't allow to crop game thumbnails if they're animated.
diff: <form-group name="crop" label="{{ (canCrop ? 'dash.games.thumbnail.crop_label' : 'dash.games.thumbnail.nocrop_label') | translate }}" ng-if="formModel.thumbnail_media_item && !formModel.file">
  + <div class="alert alert-info" ng-if="canCrop && formModel.thumbnail_media_item.is_animated">
  + <p translate>Animated thumbnails can't be cropped manually. We set a default crop for you instead.</p>
  + </div>
  +
  <div ng-if="canCrop" class="form-control-static">
  <img ng-src="{{ formModel.thumbnail_media_item.img_url }}"
  alt=""
  img-crop-aspect-ratio="cropAspectRatio"
  img-crop-min-width="minWidth"
  img-crop-min-height="minHeight"
  + disabled="formModel.thumbnail_media_item.is_animated"
  >
  <control-errors label="{{ 'dash.games.thumbnail.crop_error_label' | translate }}"></control-errors>
  </div>
  