Fixed High DPI Displays font and window scaling

The QApplication app was being created after the two QApplication::setAttribute for scaling where being called - so they never where applied to the window!

src/main.cpp

@@ -34,6 +34,8 @@
  */
 int main(int argc, char **argv)
 {
+    QApplication app(argc, argv);
+
     //This has the app draw at HiDPI scaling on HiDPI displays, usually two pixels for every one logical pixel
     QApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
 
@@ -43,8 +45,6 @@ int main(int argc, char **argv)
     QApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
 #endif
 
-    QApplication app(argc, argv);
-
     //Style program with our dark style
     QApplication::setStyle(new DarkStyleTheme);