move features not needed on laptop to be controlled with options

modules/global/options.nix

@@ -57,7 +57,7 @@
       features.applications = {
         shellScripts = lib.mkOption {
           type = lib.types.attrsOf (lib.types.str);
-          default = [];
+          default = {};
         };
 
         extraPackages = lib.mkOption {