move options to separate modules, set up mkDocs generation

modules/features/applications/gui/vscode.nix

@@ -1,7 +1,5 @@
 { inputs, self, ... }: {
   flake.nixosModules.graphics = { config, pkgs, lib, ... }: {
-    options.features.applications.gui.vscode.enable = lib.mkEnableOption "vscode";
-
     config = lib.mkIf (config.features.applications.gui.vscode.enable) (inputs.helpers.mkIfElse (config.features.nixos.home-manager.enable) {
       home-manager.users.grey.features.applications.gui.vscode.enable = lib.mkDefault true;
     } {
@@ -10,8 +8,6 @@
   };
 
   flake.homeModules.graphics = { config, pkgs, lib, ... }: {
-    options.features.applications.gui.vscode.enable = lib.mkEnableOption "vscode";
-
     config = lib.mkIf (config.features.applications.gui.vscode.enable) {
       home.packages = [ pkgs.vscode ];