bug #6589 Fix icons set name (JorickPepin)

This PR was merged into the 4.x branch.

Discussion
----------

Fix icons set name

Ref #6584
Follows #6572

Commits
-------

00da7b1 Fix icons set name

Author: javiereguiluz

templates/crud/form_theme.html.twig

@@ -820,13 +820,13 @@
 
             {% if currentFiles and allow_delete %}
                 <button class="btn ea-fileupload-delete-btn">
-                    <twig:ea:Icon name="inernal:delete" />
+                    <twig:ea:Icon name="internal:delete" />
                 </button>
             {% endif %}
 
             {% if currentFiles %}
                 <button class="btn">
-                    <twig:ea:Icon name="inernal:folder-open" />
+                    <twig:ea:Icon name="internal:folder-open" />
                 </button>
             {% endif %}
         </div>