fix: fix App component signal handling and on_submit prop

- Replaced incorrect path statement in `add_item` with proper use of `set_items.update` for signal mutation.
- Fixed dynamic dispatch for `on_submit` by boxing the `add_item` closure.
- Simplified `items_signal` usage by removing unnecessary `.clone()`.
- Improved code consistency and alignment with the latest Leptos updates.

src/app.rs

@@ -1,15 +1,16 @@
 use leptos::*;
 use crate::components::{item_form::ItemForm, items_list::ItemsList};
 use crate::models::item::Item;
+use uuid::Uuid;
 
 #[component]
 pub fn App() -> impl IntoView {
     let (items_signal, set_items) = create_signal(Vec::<Item>::new());
 
     let add_item = move |name: String, description: String, tags: Vec<(String, String)>| {
-        set_items;(|mut items: Vec<Item>| {
+        set_items.update(|items| {
             items.push(Item {
-                id: uuid::Uuid::new_v4().to_string(),
+                id: Uuid::new_v4().to_string(),
                 name,
                 description,
                 tags,
@@ -19,9 +20,9 @@ pub fn App() -> impl IntoView {
 
     view! {
         <div>
-            <h1>CompareWare</h1>
+            <h1>{ "CompareWare" }</h1>
             <ItemForm on_submit=Box::new(add_item) />
-            <ItemsList items={items_signal.get().clone()} />
+            <ItemsList items=items_signal.get() />
         </div>
     }
-}
+}