dist: Rename Linux mime type to follow system convention

Mime type definitions are usually named like the mime type they define,
i.e. x-godot-project in our case.
It was introduced with reverse DNS naming as that's what FlatHub favors,
so it will need to be renamed there.

(cherry picked from commit 7eabf4c8a3)
This commit is contained in:
Rémi Verschelde 2019-04-03 13:24:28 +02:00
parent b502152195
commit c4ff65207d