Hints for tiled in main

Hints

• asv-nonstandard-gnome-extension
  org.mapeditor.Tiled.appdata.xml:388 - kudos
  This tag is a GNOME-specific extension to AppStream and not part of the official specification. Do not expect it to work in all implementations and in all software centers.
• asv-relation-control-in-requires
  org.mapeditor.Tiled.appdata.xml:404 -
  Found a user input control relation in a `requires` tag. This means users will not be able to even install the component without having the defined input control available on the system. This is usually not intended and you want to use `control` in the `recommends` tag instead.
• asv-relation-control-in-requires
  org.mapeditor.Tiled.appdata.xml:405 -
  Found a user input control relation in a `requires` tag. This means users will not be able to even install the component without having the defined input control available on the system. This is usually not intended and you want to use `control` in the `recommends` tag instead.