* Regenerated all patches for 1.4.2 and resolved
any conflicts.
* fix-test-paths.patch doesn't copy the whole locale archive
because we have C.UTF8 now.
* nixos/flatpak creates a Flatpak system helper user
Change introduced in 1.3.2.
Changes:
See https://github.com/flatpak/flatpak/releases/tag/1.3.1 through
1.4.2.
SVG support isn't built-in to GdkPixBuf, it's provided by an external
module. Therefore, GDK_PIXBUF_MODULE_FILE should be preserved in the
sandbox, otherwise `flatpak-validate-icon --sandbox` won't work on SVG
files.