feat: theme updates

modules/features/plymouth.nix

@@ -16,8 +16,8 @@
 
         plymouth = {
           enable = true;
-          theme = "breeze";
+          theme = "spinner_alt";
-          themePackages = [ pkgs.kdePackages.breeze-plymouth ];
+          themePackages = [ pkgs.adi1090x-plymouth-themes ];
         };
       };
     };

modules/features/sddm.nix

@@ -10,7 +10,9 @@
         enableHidpi = true;
         wayland.enable = true;
         wayland.compositor = "kwin";
-        theme = "${pkgs.sddm-astronaut}/share/sddm/themes/sddm-astronaut-theme";
+        theme = "${
+          pkgs.sddm-astronaut.override { embeddedTheme = "purple_leaves"; }
+        }/share/sddm/themes/sddm-astronaut-theme";
         extraPackages = with pkgs; [
           kdePackages.qtmultimedia
         ];