Convert Style into AttributeValue

[israelsilvabarbara]

Case:

use leptos_node_ref::AnyNodeRef;
use radix_leptos_label::Label as LabelPrimitive;
use tailwind_fuse::*;
use leptos_style::Style;

#[component]
pub fn Label( 
   #[prop(into, optional)] style: Signal<Style>,
) -> impl IntoView {
    view! {
        <LabelPrimitive
            attr:style=style.get()
        />
    }
}

gives me the error:

error[E0277]: the trait bound `leptos_style::Style: IntoAttributeValue` is not satisfied
  --> packages/leptos/label/src/default.rs:21:24
   |
19 | /     view! {
20 | |         <LabelPrimitive
21 | |             attr:style=style.get()
   | |                        ^^^^^^^^^^^ the trait `FnMut()` is not implemented for `leptos_style::Style`
...  |
25 | |         </LabelPrimitive>
26 | |     }
   | |_____- required by a bound introduced by this call
   |
   = note: required for `leptos_style::Style` to implement `ReactiveFunction`
   = note: required for `leptos_style::Style` to implement `AttributeValue`
   = note: required for `leptos_style::Style` to implement `IntoAttributeValue`

There is an option to use .to_string() which solves the problem but add unnecessary verbose into the code.

I have set up a small PR implementing IntoAttributeValue.

[DanielleHuisman]

Closed by #20.