settings: initalize resolution factor with constructor instead of casting

src/core/settings.h

@@ -444,7 +444,7 @@ struct Values {
     Setting<bool> renderer_debug;
     Setting<int> vulkan_device;
 
-    Setting<u16> resolution_factor = Setting(static_cast<u16>(1));
+    Setting<u16> resolution_factor = Setting(u16(1));
     Setting<int> aspect_ratio;
     Setting<int> max_anisotropy;
     Setting<bool> use_frame_limit;