adjust how to display confidential

src/server/views/layout/layout.html

@@ -105,8 +105,15 @@
       {% endif %}
 
       {% if getConfig('crowi', 'app:confidential') %}
-      <li id="confidencial-text" class="nav-item confidential text-light d-none d-md-flex">{{ getConfig('crowi', 'app:confidential') }}</li>
-      <i class="nav-item confidential text-light icon-info d-md-none" data-toggle="tooltip" title="{{ getConfig('crowi', 'app:confidential') }}"></i>
+        {% if getConfig('crowi', 'app:confidential').length > 5 %}
+          <li class="nav-item confidential text-light">
+            <i class="text-light icon-info" data-toggle="tooltip" title="{{ getConfig('crowi', 'app:confidential') }}"></i>
+          </li>
+        {% else %}
+          <li class="nav-item confidential text-light">
+            {{ getConfig('crowi', 'app:confidential') }}
+          </li>
+        {% endif %}
       {% endif %}
     </ul>