🧰 Styled SDDM

- Catppuccin theme for SDDM
- Moved SDDM config to sddm.nix
- Removed unused toml file

configuration.nix

@@ -18,6 +18,7 @@
     ./development.nix
     ./security.nix
     ./locale.nix
+    ./sddm.nix
   ];
 
   # Bootloader.
@@ -105,12 +106,6 @@
   # services.openssh.enable = true;
 
   services = {
-    displayManager.sddm = {
-      enable = true;
-      autoNumlock = true; # Enable numlock at login # TODO doesn't work
-      wayland.enable = true;
-    };
-
     flatpak.enable = true;
 
     gnome.gnome-keyring.enable = true;