fix: window teardown

src/app/App.cpp

@@ -29,13 +29,16 @@ int App::run() {
         // poll events here
         // other threads might be able to change quit to true to auto close
 
-        while( SDL_PollEvent( &e ) != 0 ) {
-            if( e.type == SDL_QUIT ) {
-                // Ctrl + C in console !
+        SDL_Event event;
+        while(SDL_PollEvent(&event)) { // TODO: pass event handling to window
+            if(event.type == SDL_EVENT_QUIT ) {
+                quit = true;
             }
         }
     }
 
+    // SDL teardown handled in window destructor
+
     return 0;
 
 }