Fix Clippy warning in Routable macro

[tigerros]

Routable creates types which derive PartialEq, but can also derive Eq. Clippy complains about this. This PR makes them derive Eq as well. If deriving only PartialEq is intentional let me know and I'll add an #[allow] instead.

[ealmloff]

Part of the error types that the routable macro generates comes from the error type in different router traits including FromRouterSegments. Deriving Eq on the error enum requires each of those error types to implement Eq which causes this code to stop compiling on this branch:

#[rustfmt::skip]
#[derive(Routable, Clone, PartialEq)]
enum Route {
    #[route("/:id")]
    Blog { id: MyCustomType },
}

#[derive(Clone, Debug, PartialEq)]
struct MyCustomType;

impl std::fmt::Display for MyCustomType {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        write!(f, "My Custom Type")
    }
}

impl dioxus_router::routable::FromRouteSegment for MyCustomType {
    // Any error type that implements PartialEq but not Eq currently compiles, but will fail to compile with this change
    type Err = f32;

    fn from_route_segment(route: &str) -> Result<Self, Self::Err> {
        if route == "my-custom-type" {
            Ok(Self)
        } else {
            Err(0.0)
        }
    }
}

#[component]
fn Blog(id: MyCustomType) -> Element {
    rsx! {
        h1 { "How to make: " }
        p { "{id}" }
    }
}

[tigerros]

Ok, I've just added an #[allow(clippy::derive_partial_eq_without_eq)] then.

[ealmloff]

Thank you!