Document remove unused commands in app size page

[Legend-Master]

Description

• What does this PR change? Give us a brief description. document remove unused commands from feat: add a new option to remove unused commands tauri#12890
• Closes #

[netlify]

✅ Deploy Preview for tauri-v2 ready!

Name	Link
🔨 Latest commit	56070e7
🔍 Latest deploy log	https://app.netlify.com/sites/tauri-v2/deploys/67dcfb1adb8f6100082b0258
😎 Deploy Preview	https://deploy-preview-3218--tauri-v2.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
Lighthouse	1 paths audited Performance: 100 (🟢 up 5 from production) Accessibility: 100 (no change from production) Best Practices: 100 (no change from production) SEO: 100 (no change from production) PWA: 80 (no change from production) View the detailed breakdown and full score reports

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[Legend-Master]

@WSH032 Please take a look and see if it matches your expectation as we discussed in tauri-apps/tauri#12890 (comment)