adds i18n

web/src/routes/+layout.svelte

@@ -1,16 +1,23 @@
 <script>
+    import { beforeNavigate, goto } from "$app/navigation";
     import Toast from "$lib/components/base/toast.svelte";
     import Footer from "$lib/components/footer.svelte";
     import NavBar from "$lib/components/nav_bar.svelte";
+    import { isRouteProtected } from "$lib/util/authorization_util";
     import "@fortawesome/fontawesome-free/css/all.min.css";
     import "../css/app.css";
     import "../css/components.css";
     import "../css/theme.css";
+    import { currentUser } from "$lib/stores/user_store";
+
+    beforeNavigate((n) => {
+        if (!$currentUser && isRouteProtected(n.to?.url?.pathname ?? "")) {
+            n.cancel();
+            goto("/login");
+        }
+    });
 </script>
 
-<svelte:head>
-    <title>| wanderer</title>
-</svelte:head>
 <NavBar></NavBar>
 <Toast></Toast>
 <slot />