Let PortsGatherer produce full URLs instead of ports only

This is what the consuming code expects in most cases.

Change-Id: I135592039e28b994996186f627215ab1d2f8d6dc
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>

src/plugins/webassembly/webassemblyrunconfiguration.cpp

@@ -99,7 +99,7 @@ public:
     {
         CommandLine cmd = emrunCommand(runControl()->target(),
                                        runControl()->aspect<WebBrowserSelectionAspect>()->currentBrowser(),
-                                       m_portsGatherer->findPort().toString());
+                                       QString::number(m_portsGatherer->findEndPoint().port()));
         Runnable r;
         r.setCommandLine(cmd);
         setRunnable(r);