execute display manager at the end

tasks/main.yml

@@ -1,9 +1,5 @@
 ---
 
-- import_role:
-    name: display_manager
-  vars:
-    display_manager_background_image: "{{ kitapro_background_image }}"
 
 - name: install packages
   apt:
@@ -13,3 +9,8 @@
 
 - import_role:
     name: libreoffice
+
+- import_role:
+    name: display_manager
+  vars:
+    display_manager_background_image: "{{ kitapro_background_image }}"