fix(FEC-11887): qna container is not visible on embedded player by de…

…fault if the uivar “Kaltura.ForceLayoutRedraw” is set to true (#4257)

**the issue:**
this is a regression caused by SUP-11362.
when uivar Kaltura.ForceLayoutRedraw=true and using qna plugin where onPage=false, the qna container is not visible when the player is loaded.

**the solution:**
executing the responsive action that was added by SUP-11362 only in 2 cases:
1. when there is no qna plugin/disabled.
2. if qna plugin exists and enabled, then only when onPage=true.

Solves FEC-11887

modules/EmbedPlayer/resources/mw.EmbedPlayer.js

@@ -1865,9 +1865,13 @@
 						height: this.getInterface().height() + 1
 					};
 					this.updateInterfaceSize(resize);
-					resize.height = "100%";
-					resize.width = "100%";
-					this.updateInterfaceSize(resize);
+
+					var qnaPlugin = this.getPluginInstance("qna");
+					if (!qnaPlugin || qnaPlugin.getConfig("onPage")) {
+						resize.height = "100%";
+						resize.width = "100%";
+						this.updateInterfaceSize(resize);
+					}
 				}
 				this.triggerHelper('widgetLoaded');
 			}