feat: refined options for datasets

modules/nixos-modules/storage/submodules/impermanenceDataset.nix

@@ -1,10 +1,5 @@
-args @ {
-  lib,
-  name,
-  ...
-}: {...}: let
+args @ {lib, ...}: {name, ...}: let
   datasetSubmodule = (import ./dataset.nix) args;
-
   pathPermissions = {
     read = lib.mkEnableOption "should the path have read permissions";
     write = lib.mkEnableOption "should the path have read permissions";
@@ -52,6 +47,8 @@ in {
   };
 
   config = {
-    mountpoint = "/${name}";
+    mount = {
+      mountPoint = lib.mkDefault "/${name}";
+    };
   };
 }