Continue #45957 #46906 to fix font render issue again.

Release Notes:

- Fixed macOS font render clipped bug when use `.SystemUIFont`.

| .SystemUIFont | .ZedMono |
| --- | --- |
| <img width="1034" height="978" alt="image"
src="https://github.com/user-attachments/assets/96b815a1-9484-4a38-8391-a4af3db51a36"
/> | <img width="1034" height="978" alt="image"
src="https://github.com/user-attachments/assets/1aaece42-9acd-47b0-a0a0-3cb425f40301"
/> |

```bash
cargo run -p gpui --example text
```

Test in Zed with `.ZedMono` font:

<img width="815" height="844" alt="image"
src="https://github.com/user-attachments/assets/1e44d186-cee5-4f54-910a-4c4602ca010e"
/>

With `.ZedSans`:

<img width="815" height="844" alt="image"
src="https://github.com/user-attachments/assets/1e502f3e-794c-4082-9faf-5a920adc1214"
/>

`Monaco`:

<img width="815" height="844" alt="image"
src="https://github.com/user-attachments/assets/906a3fd2-715a-4f53-b6fe-4614f4c6edab"
/>

`Menlo`:

<img width="815" height="844" alt="image"
src="https://github.com/user-attachments/assets/a8f8c302-2083-477c-ae72-f6e5c7f91d00"
/>