fixup 6: outdent/indent functions for outline nodes

lib/radiator/outline.ex

@@ -129,19 +129,6 @@ defmodule Radiator.Outline do
     end
   end
 
-  defp do_intend_node(_node, nil), do: {:error, :no_prev_node}
-
-  defp do_intend_node(node, prev_node) do
-    new_previous_id =
-      prev_node
-      |> order_child_nodes()
-      |> List.last()
-      |> get_node_id()
-
-    move_node(node.uuid, prev_id: new_previous_id, parent_id: prev_node.uuid)
-    {:ok, node}
-  end
-
   @doc """
   Moves a node to another parent.
 
@@ -495,6 +482,19 @@ defmodule Radiator.Outline do
     end)
   end
 
+  defp do_intend_node(_node, nil), do: {:error, :no_prev_node}
+
+  defp do_intend_node(node, prev_node) do
+    new_previous_id =
+      prev_node
+      |> order_child_nodes()
+      |> List.last()
+      |> get_node_id()
+
+    move_node(node.uuid, prev_id: new_previous_id, parent_id: prev_node.uuid)
+    {:ok, node}
+  end
+
   defp parent_and_prev_consistent?(_, nil), do: true
   defp parent_and_prev_consistent?(nil, _), do: true