novncindex : Renamed popupStatusPanel to popupStatus

to match
https://github.com/kanaka/noVNC/commit/74f2ac968d782318967d9162454ca945dcc8b3deSigned-off-by: Alexandre Derumier <aderumier@odiso.com>

PVE/NoVncIndex.pm

@@ -97,7 +97,7 @@ INCLUDE_URI='/novnc/include/';
     </div>
 
     <!-- Popup Status Panel -->
-    <div id="noVNC_popup_status_panel" class="">
+    <div id="noVNC_popup_status" class="">
     </div>
 
     <!-- Clipboard Panel -->