Save window position

src/save.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include "common.h"
+#include <SDL3/SDL_video.h>
 #include <string>
 #include <vector>
 
@@ -18,6 +19,8 @@ struct Settings
     int height = 900;
     int volume = 50;
     int width = 1600;
+    int x = SDL_WINDOWPOS_CENTERED;
+    int y = SDL_WINDOWPOS_CENTERED;
     Measurement measurement = MEASUREMENT_METRIC;
     bool isCharacterColor = true;
     bool isConsole = false;