Error handling refactor and 500 page/message templates

src/startup.rs

@@ -1,6 +1,4 @@
-use crate::{
-    authentication::require_auth, configuration::Settings, email_client::EmailClient, routes::*,
-};
+use crate::{configuration::Settings, email_client::EmailClient, routes::require_auth, routes::*};
 use axum::{
     Router,
     extract::MatchedPath,