move options to separate modules, set up mkDocs generation

modules/features/applications/gui/floorp.nix

@@ -1,7 +1,5 @@
 { inputs, self, ... }: {
   flake.nixosModules.graphics = { pkgs, lib, config, ... }: {
-    options.features.applications.gui.floorp.enable = lib.mkEnableOption "floorp";
-
     config = lib.mkIf (config.features.applications.gui.floorp.enable) (inputs.helpers.mkIfElse (config.features.nixos.home-manager.enable) {
       home-manager.users.grey.features.applications.gui.floorp.enable = lib.mkDefault true;
     } {
@@ -10,8 +8,6 @@
   };
 
   flake.homeModules.graphics = { pkgs, lib, config, ... }: {
-    options.features.applications.gui.floorp.enable = lib.mkEnableOption "floorp";
-
     config = lib.mkIf (config.features.applications.gui.floorp.enable) (
     let
       firefox-addons = with pkgs; inputs.firefox-addons.packages.${pkgs.stdenv.hostPlatform.system};