Upgraded Leptos to 0.8. Fixes #1

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/pages/user_edit.rs

@@ -1,4 +1,4 @@
-use leptos::*;
+use leptos::prelude::*;
 use crate::backend::user::CreateUser;
 use crate::components::data_form::DataForm;
 use crate::components::modal_box::DialogOpener;
@@ -6,7 +6,7 @@ use crate::locales::trl;
 
 #[component]
 pub fn user_edit(opener: DialogOpener) -> impl IntoView {
-    let create_usr = create_server_action::<CreateUser>();
+    let create_usr = ServerAction::<CreateUser>::new();
     view! {
         <DataForm opener=opener action=create_usr title="Create user">
                 //<input type="hidden" value={move || company.get().id()} name="company[id]"/>