Add exit game function

game/main.c

@@ -310,6 +310,9 @@ void imguiRender(float dt, void *userData) {
     if (igCollapsingHeader_TreeNodeFlags("Entities", 0)) {
         igSliderFloat("Frame duration", &game->frameDuration, 0.0f, 1.0f, NULL, 0);
     }
+    if (igSmallButton("Quite game")) {
+        bzGameExit();
+    }
     igEnd();
 }