Register some more windows

So they get an entry in the Window menu, and window related shortcuts
are registered correctly.

Change-Id: Ie7e882a009f928f1268fdd312e7fb5362f6a837f
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/coreplugin/loggingviewer.cpp

@@ -737,6 +737,7 @@ void LoggingViewer::showLoggingView()
         // explicitly disable manager again
         widget->deleteLater();
     });
+    ICore::registerWindow(widget, Context("Qtc.LogViewer"));
     widget->show();
 }