global(gui): add flameshot and libnotify

Changed files
+2
global
+2
global/gui/packages.nix
···
lib.mkIf config.gensokyo.traits.gui {
environment.systemPackages = [
pkgs.vlc
+
pkgs.flameshot
+
pkgs.libnotify
pkgs.thunderbird
inputs.ghostty.packages.${pkgs.system}.default
];