Take ownership of the flatpak

[Lollard]

https://flathub.org/apps/at.vintagestory.VintageStory

The flatpak is a much simpler option to install VS on Linux, it doesn't involve using the terminal and installing a bunch of dependencies as seen here: https://wiki.vintagestory.at/index.php?title=Installing_the_game_on_Linux

The developer should make it official and verified instead of leaving it unverified and whether it works or not uncertain.

[Yskar]

Hytale is using Flatpak to provide it's launcher for Linux, VS should do the same, it's a better way to distribute software for Linux than the current one.

[Diff]

Flatpak is one of the easy installation methods listed at the top of https://wiki.vintagestory.at/index.php?title=Installing_the_game_on_Linux#Easy_installation_options

And despite it being labeled as unofficial, I believe the flathub flatpak is maintained by the same individual that runs the VS-hosted flatpak. In the past when one's gone out of date, they've both gone out of date together.