bug: Nested macros don't get formatted properly in CLI `fmt`

[marc2332]

Problem

Big example:

Smaller repro:

fn app() -> Element {
    rsx!(
        rect {
            height: "50%",
            width: "100%",
            onclick: |_| {
                rsx!(
                    rect {
                        height: "50%",
                        width: "100%",
                        a: "2",
                        b: "3",
                        d: "4",
                        height: "50%",
                        width: "100%",
                        a: "2",
                        b: "3",
                        d: "4",
                    }
                );
            }
        }
    )
}

run dx fmt --file file.rs --split-line-attributes

turns into:

fn app() -> Element {
    rsx!(
        rect {
            height: "50%",
            width: "100%",
            onclick: |_| {
                rsx!(
                    rect { height : "50%", width : "100%", a : "2", b : "3", d : "4", height :
                    "50%", width : "100%", a : "2", b : "3", d : "4", }
                );
            }
        }
    )
}

Expected behavior

Still break the line on nested macros.

Environment:

• Dioxus version: 0.5
• Rust version:1.77
• OS info: Windows
• App platform: any