Refactor scheduler interval to run every 1 hour instead of every 30 minutes

app.py

@@ -204,6 +204,6 @@ with demo:
             gr.Markdown("```bib\n" + CITATION_BUTTON_TEXT + "\n```")
 
 scheduler = BackgroundScheduler()
-scheduler.add_job(restart_space, "interval", seconds=1800)
+scheduler.add_job(restart_space, "interval", seconds=3600)
 scheduler.start()
 demo.queue(default_concurrency_limit=40).launch()