Use shared-modules for SDL2 and libdecor, permissions update

[orowith2os]

Currently, SuperTuxCart uses the runtime-provided SDL2 which doesn't provide libdecor. Therefore, it doesn't draw its own window decorations on Wayland compositors that don't implement the xdg-decoration protocol. This fixes that issue. I also reordered the permissions a bit to be a bit cleaner.

Closes #23

[flathubbot]

Started test build 12577

[orowith2os]

Forgot to @AsciiWolf

[flathubbot]

Build 12577 successful
To test this build, install it from the testing repository:

flatpak install --user https://dl.flathub.org/build-repo/125009/net.supertuxkart.SuperTuxKart.flatpakref

[flathubbot]

Started test build 12584

[flathubbot]

Build 12584 successful
To test this build, install it from the testing repository:

flatpak install --user https://dl.flathub.org/build-repo/125016/net.supertuxkart.SuperTuxKart.flatpakref

[AsciiWolf]

Thanks for the PR! To be honest, I was not aware of libdecor. What advantages does it provide for common end-users?

[orowith2os]

Thanks for the PR! To be honest, I was not aware of libdecor. What advantages does it provide for common end-users?

I've already stated them in the main issue comment:

Currently, SuperTuxCart uses the runtime-provided SDL2 which doesn't provide libdecor. Therefore, it doesn't draw its own window decorations on Wayland compositors that don't implement the xdg-decoration protocol.

Without window decorations, you can't drag the window around (without keybinds), minimize it, or maximize it without relying on your window manager or DE.

[flathubbot]

Started test build 12629

[flathubbot]

Build 12629 successful
To test this build, install it from the testing repository:

flatpak install --user https://dl.flathub.org/build-repo/125060/net.supertuxkart.SuperTuxKart.flatpakref

[orowith2os]

Seems to be working fine over here