fix: refresh updater check while app is running

[okaryo]

Summary

• Check for updates again while the app is running
• Recheck on app focus only after a 24-hour cooldown
• Add a 24-hour interval check for long-running sessions
• Avoid duplicate checks while checking, installing, or when an update is already available

Checks

• pnpm run format:check
• pnpm run lint
• pnpm run check
• pnpm test
• pnpm run build