fix: disable smartcard authentication on gdm3

[lucas-stauder]

Disables smartcard authentication in gdm3 by default which is an issue for users with yubikeys or similar smartcards.

The feature is only useful for corporate networks, which Vanilla OS isn't targeting currently and which would create unique images either way

https://gitlab.gnome.org/GNOME/gdm/-/issues/877

[lucas-stauder]

https://discord.com/channels/1023243680829681704/1271112822159441951

[axtloss]

is there no conf.d directory for gdm where things like these can be put in their own files? that'd be a lot more reliable than editing the main config directly

[lucas-stauder]

is there no conf.d directory for gdm where things like these can be put in their own files? that'd be a lot more reliable than editing the main config directly

fixed, thanks for the idea!

[axtloss]

Please squash your commits so that i can merge them

[lucas-stauder]

Please squash your commits so that i can merge them

Done!

[lucas-stauder]

It's not working with the Config file in the directory, I had the other line still in the main config file while testing by accident ... Either the folder is wrong or it has no support for folder based configuration

[mirkobrombin]

We should rollback the changes or fix them then

[axtloss]

According to https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1051785#52 the proper file is /etc/gdm3/greeter.dconf-defaults and a config directory doesn't exist, so i guess we'll just use that file