Hints for xpad in main

Hints

• asv-content-rating-missing
  -
  This component has no `content_rating` tag to provide age rating information. You can generate the tag data online by answering a few questions at https://hughsie.github.io/oars/
• screenshot-no-thumbnails
  No thumbnails have been generated for screenshot 'https://wiki.gnome.org/Apps/Xpad?action=AttachFile&do=get&target=xpad.png'.
  This could mean that the original provided screenshot is too small to generate thumbnails from.