Refactor theme module

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/common/user/configs/gui/kitty/default.nix

@@ -13,37 +13,34 @@ let
 in
 {
   home-manager.users.${username} = {
-    programs = {
-      kitty = {
-        enable = true;
+    programs.kitty = {
+      enable = true;
 
-        font = {
-          name = builtins.head hmConfig.theme.font.monospace.names;
-          package = builtins.head hmConfig.theme.font.monospace.packages;
-          inherit (hmConfig.theme.font) size;
-        };
-
-        extraConfig = ''
-          confirm_os_window_close 0
-          include theme.conf
-        '';
+      font = {
+        name = builtins.head hmConfig.theme.font.monospace.names;
+        package = builtins.head hmConfig.theme.font.monospace.packages;
+        inherit (hmConfig.theme.font) size;
       };
 
-      matugen.settings.templates.kitty = {
-        input_path = ./theme.conf;
-        output_path = "${hmConfig.xdg.configHome}/kitty/theme.conf";
-      };
+      extraConfig = ''
+        confirm_os_window_close 0
+        include theme.conf
+      '';
     };
 
-    theme.extraConfig = "${
-      lib.meta.getExe (
-        pkgs.writeShellApplication {
-          name = "reload-kitty";
-          runtimeInputs = with pkgs; [ procps ];
-          text = "exec pkill kitty -SIGUSR1";
-        }
-      )
-    } &";
+    theme = {
+      templates."${hmConfig.xdg.configHome}/kitty/theme.conf".source = ./theme.conf;
+
+      extraConfig = "${
+        lib.meta.getExe (
+          pkgs.writeShellApplication {
+            name = "reload-kitty";
+            runtimeInputs = with pkgs; [ procps ];
+            text = "exec pkill kitty -SIGUSR1";
+          }
+        )
+      } &";
+    };
 
     home.persistence."/cache${userConfig.home}".directories = [
       "${hmConfig.xdg.relativeCacheHome}/kitty"