chat head: Show minimize icon and hide for now the vcard icon

src/templates/chatbox_head.html

@@ -24,7 +24,7 @@
     <div class="col-sm-3 col-lg-2">
         <div class="chatbox-buttons row no-gutters">
             <a class="chatbox-btn close-chatbox-button fa fa-close" title={{{o.info_close}}}></a>
-            <a class="chatbox-btn fa fa-vcard" title="Contact profile" data-toggle="modal" data-target="#contactProfileModal"></a>
+            <!-- <a class="chatbox-btn fa fa-vcard" title="Contact profile" data-toggle="modal" data-target="#contactProfileModal"></a> -->
         </div>
     </div>
 </div>

src/templates/chatbox_minimize.html

-<a class="chatbox-btn toggle-chatbox-button icon-minus" title="{{{o.info_minimize}}}"></a>
+<a class="chatbox-btn toggle-chatbox-button fa fa-minus" title="{{{o.info_minimize}}}"></a>