Fix new user registeration.

crates/auth-ui/src/lib.rs

@@ -144,7 +144,7 @@ async fn ui_login_handler(
   let html = auth::LoginTemplate {
     state: format!("{redirect_uri}\n{response_type}\n{pkce_code_challenge}"),
     alert: query.alert.as_deref().unwrap_or_default(),
-    enable_registration: config.disable_password_auth,
+    enable_registration: !config.disable_password_auth,
     oauth_providers: &config.oauth_providers,
     oauth_query_params: &oauth_query_params,
   }