noVNC: Show a dot cursor when the cursor is not visible (#11418)

Author: vishesh92

server/src/main/java/org/apache/cloudstack/consoleproxy/ConsoleAccessManagerImpl.java

@@ -516,7 +516,7 @@ private String generateConsoleAccessUrl(String rootUrl, ConsoleProxyClientParam
             sb.append("/ajax?token=" + token);
         } else {
             sb.append("/resource/noVNC/vnc.html")
-                    .append("?autoconnect=true")
+                    .append("?autoconnect=true&show_dot=true")
                     .append("&port=" + vncPort)
                     .append("&token=" + token);
             if (requiresVncOverWebSocketConnection(vm, hostVo) && details != null && details.getValue() != null) {