Running dx fmt --all-code corrupts my code's syntax

**Problem**

Running `dx fmt --all-code` generates invalid Rust code.

The formatter rewrites valid `rsx!` event handlers into invalid syntax, causing the project to fail to compile.

I have attached two files:

- `code_before_dx_fmt.txt`: original source code that compiles correctly.
- `code_after_dx_fmt.txt`: the result after running `dx fmt --all-code`.

For example, an event handler like:

```rust
oninput: move |i| async move {
email_input.set(i.value());
},
```
is rewritten into invalid Rust syntax by the formatter.

```rust
oninput: move | i |
async move { email_input.set(i.value()); }
email_input.set(i.value());
},
```

**Steps To Reproduce**

1. Create or open a Dioxus Desktop project.
2. Add an `rsx!` event handler using an async closure (similar to the attached example).
3. Run:

```bash
dx fmt --all-code
```

4. Observe that the formatter generates invalid Rust syntax and the project no longer compiles.

**Screenshots**

[code_after_dx_fmt.txt](https://github.com/user-attachments/files/30096873/code_after_dx_fmt.txt)
[code_before_dx_fmt.txt](https://github.com/user-attachments/files/30096874/code_before_dx_fmt.txt)

**Additional information**

I've attached the source code before and after formatting:

- `code_before_dx_fmt.txt`
- `code_after_dx_fmt.txt`

**Environment:**

- Dioxus version: 0.7.1
- DX CLI version: 0.7.9
- Rust version: 1.97.0
- OS info: Fedora Linux 44 (KDE Plasma)
- App platform: Desktop

**Questionnaire**

Reproduce the issue with the attached code_before_dx_fmt.txt and run dx fmt --all-code, then compare the result with code_after_dx_fmt.txt. Start by tracing the dx fmt --all-code entry point and inspect how the async rsx! event handler is formatted; done means the formatted output remains valid Rust and the project compiles.

Written by the indexing model from the issue text.