Changed: Do not nest hr element inside group paragraph (hr already is a group)

--HG--
branch : develop

code/nel/src/gui/group_html.cpp

@@ -5764,7 +5764,7 @@ namespace NLGUI
 	// ***************************************************************************
 	void CGroupHTML::htmlHR(const CHtmlElement &elm)
 	{
-		newParagraph(0);
+		endParagraph();
 
 		CInterfaceGroup *sep = CWidgetManager::getInstance()->getParser()->createGroupInstance("html_hr", "", NULL, 0);
 		if (sep)
@@ -5787,7 +5787,7 @@ namespace NLGUI
 			}
 
 			renderPseudoElement(":before", elm);
-			getParagraph()->addChild(sep);
+			addHtmlGroup(sep, 0);
 			renderPseudoElement(":after", elm);
 
 			endParagraph();