ux: improve toast visibility and add close button

src/App.vue

@@ -1,6 +1,6 @@
 <template>
   <RouterView />
-  <Toaster />
+  <Toaster position="top-right" :duration="5000" close-button />
   <CookieBanner />
   <CompleteProfileModal
     v-if="authStore.user"

src/pages/Auth.vue

@@ -254,7 +254,7 @@ onMounted(async () => {
       mode.value = "reset";
       formData.token = token;
     } catch (err: any) {
-      toast.error(err.message || "Link has expired");
+      toast.error(err.message || "Link has expired", { duration: 10000 });
       router.replace({ query: { ...route.query, token: undefined } });
       mode.value = "login";
     } finally {