treewide: move shared/nixosModules to modules

The idea of this refactor is, as the configuration is getting bigger and
more complex, to move everything into a local modules system. The idea
is to simplify hosts declaration and add a new layer of abstraction to
avoid the long and redundant imports in hosts/default.nix, that I am
currently using.

First, we're going to move everything to the modules directory, and
split options from the proper configuration. That allows us to have an
easier time understanding how the options are structured, as they will
follow the directory structure and won't be mixed with the module
configuration.

hosts/default.nix

@@ -11,7 +11,7 @@
     };
 
   base = [
-    ../shared/nixosModules
+    ../modules
     "${self}/config/nixos"
     "${self}/config/nixos/core/home-manager.nix"
 

modules/default.nix

@@ -0,0 +1,6 @@
+{
+  imports = [
+    ./style
+    ./options
+  ];
+}

modules/options/default.nix

@@ -1,7 +1,7 @@
 {
   imports = [
-    ./systemVars.nix
     ./homeVars.nix
-    ./style
+    ./style.nix
+    ./systemVars.nix
   ];
 }

modules/options/style.nix

@@ -67,7 +67,7 @@ in {
       description = ''
         Path to an avatar image (used for hyprlock).
       '';
-      default = ../../../assets/avatar.png; # TODO silly, change this
+      default = ../../assets/avatar.png; # TODO silly, change this
     };
 
     gtk = {

modules/style/default.nix

@@ -0,0 +1,29 @@
+{
+  inputs,
+  config,
+  lib,
+  ...
+}: let
+  inherit (lib) mkIf;
+
+  cfg = config.local.style;
+in {
+  imports =
+    [
+      inputs.niri.nixosModules.niri
+      inputs.hyprland.nixosModules.default
+    ]
+    ++ lib.filesystem.listFilesRecursive ./modules;
+
+  config = mkIf cfg.enable {
+    home-manager.sharedModules = [
+      {
+        home.pointerCursor = {
+          inherit (cfg.cursorTheme) name package size;
+          x11.enable = true;
+          gtk.enable = true;
+        };
+      }
+    ];
+  };
+}

shared/nixosModules/style/default.nix

@@ -1,34 +0,0 @@
-{
-  inputs,
-  config,
-  lib,
-  ...
-}: let
-  inherit (lib) mkIf;
-
-  cfg = config.local.style;
-in {
-  imports =
-    [
-      inputs.niri.nixosModules.niri
-      inputs.hyprland.nixosModules.default
-
-      ./options.nix
-    ]
-    ++ lib.filesystem.listFilesRecursive ./modules;
-
-  config =
-    mkIf
-    cfg.enable
-    {
-      home-manager.sharedModules = [
-        {
-          home.pointerCursor = {
-            inherit (cfg.cursorTheme) name package size;
-            x11.enable = true;
-            gtk.enable = true;
-          };
-        }
-      ];
-    };
-}