Switch to QT Category logging (#2206)

Co-authored-by: Rasmus Karlsson <rasmus.karlsson@pajlada.com>

src/widgets/dialogs/QualityPopup.cpp

@@ -1,5 +1,6 @@
 #include "QualityPopup.hpp"
 #include "Application.hpp"
+#include "common/QLogging.hpp"
 #include "singletons/WindowManager.hpp"
 #include "util/StreamLink.hpp"
 #include "widgets/Window.hpp"
@@ -55,7 +56,8 @@ void QualityPopup::okButtonClicked()
     }
     catch (const Exception &ex)
     {
-        qDebug() << "Exception caught trying to open streamlink:" << ex.what();
+        qCWarning(chatterinoWidget)
+            << "Exception caught trying to open streamlink:" << ex.what();
     }
 
     this->close();