[Feature Request] Add option to use external browser for preview instead of built-in preview

Question

**Bug Description**
in claude code desktop app, why cant we use our own broswer for preview? i dun need claude code desktop app to help me start my dev ser up, my dev ser be in local or remote, i just need a normal browser there.

**Environment Info**
- Platform: darwin
- Terminal: ghostty
- Version: 2.1.109
- Feedback ID: 846364d4-8d04-4ca2-b444-648bffe97bb3

**Errors**
```json
[]
```