Fixed crash when the current mouse capture window is destroyed

Fixes libsdl-org#10494

(cherry picked from commit 91d97a3)

src/video/SDL_video.c

@@ -3312,6 +3312,9 @@ void SDL_DestroyWindow(SDL_Window *window)
     if (SDL_GetKeyboardFocus() == window) {
         SDL_SetKeyboardFocus(NULL);
     }
+    if ((window->flags & SDL_WINDOW_MOUSE_CAPTURE)) {
+        SDL_UpdateMouseCapture(SDL_TRUE);
+    }
     if (SDL_GetMouseFocus() == window) {
         SDL_SetMouseFocus(NULL);
     }