video: hide window before destroying properties

This fixes a few "DEBUG: Parameter 'props' is invalid" messages, when exiting testcamera.

src/video/SDL_video.c

@@ -3757,6 +3757,12 @@ void SDL_DestroyWindow(SDL_Window *window)
         SDL_DestroyRendererWithoutFreeing(renderer);
     }
 
+    /* Restore video mode, etc. */
+    SDL_UpdateFullscreenMode(window, SDL_FALSE, SDL_TRUE);
+    if (!(window->flags & SDL_WINDOW_EXTERNAL)) {
+        SDL_HideWindow(window);
+    }
+
     SDL_DestroyProperties(window->props);
 
     /* Clear the modal status, but don't unset the parent, as it may be
@@ -3767,12 +3773,6 @@ void SDL_DestroyWindow(SDL_Window *window)
         _this->SetWindowModalFor(_this, window, NULL);
     }
 
-    /* Restore video mode, etc. */
-    SDL_UpdateFullscreenMode(window, SDL_FALSE, SDL_TRUE);
-    if (!(window->flags & SDL_WINDOW_EXTERNAL)) {
-        SDL_HideWindow(window);
-    }
-
     /* Make sure the destroyed window isn't referenced by any display as a fullscreen window. */
     for (int i = 0; i < _this->num_displays; ++i) {
         if (_this->displays[i]->fullscreen_window == window) {