BUG: fix i18n key

src/components/UserComponent.jsx

@@ -83,7 +83,7 @@ export function UserComponent({onLogin, onLogout}) {
         const service = new InfoService();
         await service.logout();
         if (onLogout()) {
-          show_login_form(t("You have been logged out."), "success");
+          show_login_form(t("You have been logged out"), "success");
         }
       } catch (e) {
         show_login_form(t("Logout failed") + ": " + translateServerMessages(e.message), "error");