make error toast global in admin routes

src/routes/admin/+layout.svelte

@@ -5,7 +5,8 @@
 	import { buttonTriggeredRequest } from '$lib/components/utils';
 	import { goto } from '$app/navigation';
 	import type { LayoutData } from './$types';
-	import { adminCount, reportCount } from '$lib/stores';
+	import { adminCount, errorMessage, reportCount } from '$lib/stores';
+	import ErrorToast from '$lib/components/Toast/ErrorToast.svelte';
 
 	async function logout() {
 		const response = await fetch(`${env.PUBLIC_BASE_PATH}/admin/logout`, {
@@ -21,6 +22,8 @@
 	export let data: LayoutData;
 	if (data.reportCount) $reportCount = data.reportCount;
 	if (data.adminCount) $adminCount = data.adminCount;
+
+	errorMessage.subscribe(console.log);
 </script>
 
 {#if $page.url.pathname !== `${env.PUBLIC_BASE_PATH}/admin/login`}
@@ -71,3 +74,9 @@
 		<slot />
 	</div>
 {/if}
+
+{#if $errorMessage}
+	<ErrorToast timeout={2000} show={$errorMessage != null}>
+		<span>{$errorMessage}</span>
+	</ErrorToast>
+{/if}