Hints for kontact in main

Hints

• asv-summary-has-dot-suffix
  :91 - Διαχειριστείτε την ηλεκτρονική σας αλληλογραφία, τα ημερολόγιά σας, τις επαφές σας και πολλά άλλα από ένα μόνο παράθυρο.
  The component summary should not end with a dot (`.`).
• asv-desktop-app-launchable-omitted
  -
  This `desktop-application` component has no `desktop-id` launchable tag, however it contains all the necessary information to display the application. The omission of the launchable entry means that this application can not be launched directly from installers or software centers. If this is intended, this information can be ignored, otherwise it is strongly recommended to add a launchable tag as well.