change revision-history position when it's 'potal' and not 'potal'

src/server/views/widget/page_tabs.html

@@ -49,11 +49,19 @@
     </li>
   {% endif %}
 
-  <li class="nav-item">
-    <a class="nav-link" href="#revision-history" role="tab" data-toggle="tab">
-      <i class="icon-layers"></i><span class="hidden-xs"> {{ t('History') }}</span>
-    </a>
-  </li>
+  {% if page.isPortal() %}
+    <li class="nav-item ml-md-auto">
+      <a class="nav-link" href="#revision-history" role="tab" data-toggle="tab">
+        <i class="icon-layers"></i><span class="hidden-xs"> {{ t('History') }}</span>
+      </a>
+    </li>
+    {% else %}
+      <li class="nav-item">
+        <a class="nav-link" href="#revision-history" role="tab" data-toggle="tab">
+          <i class="icon-layers"></i><span class="hidden-xs"> {{ t('History') }}</span>
+        </a>
+      </li>
+  {% endif %}
 
   {% if !isTrashPage() %}
     {% if page.isPortal() %}