Hints for kleopatra in main

Hints

• metainfo-validation-hint
  Validation of the metainfo file yielded the following hint: Consider using a secure (HTTPS) URL for 'http://docs.kde.org/stable/en/kdepim/kleopatra/index.html'
• metainfo-validation-hint
  Validation of the metainfo file yielded the following hint: Consider using a secure (HTTPS) URL for 'http://kde.org/images/screenshots/kleopatra.png'
• metainfo-validation-hint
  Validation of the metainfo file yielded the following hint: The component summary should not end with a "." [Графічний інтерфейс до засобів керування сертифікатами та універсальних можливостей з шифрування.]