translate: translations for drag and drop guide

Fixes #36

Author: ricardochl

adev-es/src/app/sub-navigation-data.ts

@@ -631,6 +631,11 @@ const DOCS_SUB_NAVIGATION_DATA: NavigationItem[] = [
           },
         ],
       },
+      {
+        label: 'Drag and drop (arrastrar y soltar)',
+        path: 'guide/drag-drop',
+        contentPath: 'guide/drag-drop',
+      },
       {
         label: 'Experimental features',
         children: [