flatpak: Close the DConf hole
This closes the DConf hole and adds an instruction to migrate existing DConf settings to use the keyfile backend in the sandbox.
See: https://blogs.gnome.org/mclasen/2019/07/12/settings-in-a-sandbox-world/
This closes the DConf hole and adds an instruction to migrate existing DConf settings to use the keyfile backend in the sandbox.
See: https://blogs.gnome.org/mclasen/2019/07/12/settings-in-a-sandbox-world/