Add an option to force logout if the home on server fails to mount

roles/lmn_localhome/tasks/main.yml

@@ -34,6 +34,6 @@
     mode: '0755'
     content: |
       [[ "${UID}" -gt 10000 ]] && ! findmnt "/lmn/media/${USER}/home" > /dev/null && exit 0
-      {% if 'teacherlaptop' not in group_names %}
+      {% if localhome_logout_missing_serverhome %}
       [[ "${UID}" -gt 10000 ]] && ! findmnt /srv/samba/schools/default-school > /dev/null && exit 0
       {% endif %}