feat: make Nav and Profile menu dynamic

crates/app/src/templates/mod.rs

@@ -1,8 +1,12 @@
 use axum::Router;
 
 mod hello;
+mod nav;
+mod profile;
 
 pub fn get_routes() -> Router {
     Router::new()
         .nest("/hello", hello::get_routes())
+        .nest("/nav", nav::get_routes())
+        .nest("/profile", profile::get_routes())
 }