fix: inconsistent sorting

on components that were inserted in quick succession

lib/components_elixir/inventory/category.ex

@@ -18,7 +18,7 @@ defmodule ComponentsElixir.Inventory.Category do
     has_many :children, Category, foreign_key: :parent_id
     has_many :components, Component
 
-    timestamps()
+    timestamps(type: :naive_datetime_usec)
   end
 
   @doc false

lib/components_elixir/inventory/component.ex

@@ -23,7 +23,7 @@ defmodule ComponentsElixir.Inventory.Component do
     belongs_to :category, Category
     belongs_to :storage_location, StorageLocation
 
-    timestamps()
+    timestamps(type: :naive_datetime_usec)
   end
 
   @doc false

lib/components_elixir/inventory/storage_location.ex

@@ -22,7 +22,7 @@ defmodule ComponentsElixir.Inventory.StorageLocation do
     has_many :children, StorageLocation, foreign_key: :parent_id
     has_many :components, Component
 
-    timestamps()
+    timestamps(type: :naive_datetime_usec)
   end
 
     @doc false