codigo actual del servidor, con avances de joan

resources/views/categories/child_category.blade.php

@@ -0,0 +1,12 @@
+@php
+    $value = null;
+    for ($i=0; $i < $child_category->level; $i++){
+        $value .= '--';
+    }
+@endphp
+<option value="{{ $child_category->id }}">{{ $value." ".$child_category->getTranslation('name') }}</option>
+@if ($child_category->categories)
+    @foreach ($child_category->categories as $childCategory)
+        @include('categories.child_category', ['child_category' => $childCategory])
+    @endforeach
+@endif