rust fmt and some cleaning

src/inventory/routes.rs

@@ -1,14 +1,19 @@
 use axum::{
-    routing::{get, put, post},
     Router,
+    routing::{get, post, put},
 };
 
 use crate::{inventory::handler::*, utils::db_pool::AppState};
 
 pub fn inventory_routes() -> Router<AppState> {
-
     Router::new()
-        .route("/update_item/{item_id}/{item_amount}", put(update_inventory_item))
-        .route("/add_item/{item_name}/{item_amount}", post(create_inventory_item))
+        .route(
+            "/update_item/{item_id}/{item_amount}",
+            put(update_inventory_item),
+        )
+        .route(
+            "/add_item/{item_name}/{item_amount}",
+            post(create_inventory_item),
+        )
         .route("/get_item/", get(get_inventory_item))
-}
+}