IBX-8205: Added possibility to configure identifier of dashboard container (#2404)

* Added possibility to configure identifier of dashboard container

* Code moved to another section, sentence added

* Fix

Author: julitafalcondusza

docs/administration/dashboard/configure_default_dashboard.md

@@ -70,4 +70,16 @@ You can find it in the Admin panel, **Dashboard content Ttpe** section, **View/G
 Determines the content type identifier of the container for dashboards and lets you create additional structure for the predefined dashboards.
 By default all the dashboards containers are set as a folders.
 
-![Container content type](dashboard_container_type.png)
+![Container content type](dashboard_container_type.png)
+
+If the `folder` content type doesn't exist or is modified, you can use another one, for example:
+
+```yaml
+ibexa:
+    system:
+        default:
+            dashboard:
+                container_content_type_identifier: user_dashboard_container
+```
+
+The custom content type should be a container and needs to have a field type with `name` identifier.