Hints for vorta in main

Warnings

• asv-desktop-app-launchable-missing
  com.borgbase.Vorta.appdata.xml -
  This `desktop-application` component is missing a `desktop-id` launchable tag. This means that this application can not be launched and has no association with its desktop-entry file. It also means no icon data or category information from the desktop-entry file will be available, which will result in this application being ignored entirely.
• asv-releases-not-in-order
  com.borgbase.Vorta.appdata.xml - v0.9.1 << v0.9.1-beta2
  The releases are not sorted in a latest to oldest version order. This is required as some tools will assume that the latest version is always at the top. Sorting releases also increases overall readability of the metainfo file.