Hints for buho in main

Warnings

• asv-desktop-app-launchable-missing
  org.kde.buho.metainfo.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-desktop-entry-value-invalid-chars
  org.kde.buho.desktop - Comment[eu]
  The value of this desktop-entry field contains invalid or non-printable UTF-8 characters, which can not be displayed properly.
• screenshot-save-error
  Unable to store screenshot for 'https://nxos.org/wp-content/uploads/2021/05/buho-stable-1024x723.png': Could not load source screenshot for storing: Unrecognized image file format