enh: remove token cookie on signout

src/lib/components/layout/Sidebar/UserMenu.svelte

@@ -8,6 +8,7 @@
 	import { showSettings, activeUserCount, USAGE_POOL, mobile, showSidebar } from '$lib/stores';
 	import { fade, slide } from 'svelte/transition';
 	import Tooltip from '$lib/components/common/Tooltip.svelte';
+	import { userSignOut } from '$lib/apis/auths';
 
 	const i18n = getContext('i18n');
 
@@ -154,7 +155,8 @@
 
 			<button
 				class="flex rounded-md py-2 px-3 w-full hover:bg-gray-50 dark:hover:bg-gray-800 transition"
-				on:click={() => {
+				on:click={async () => {
+					await userSignOut();
 					localStorage.removeItem('token');
 					location.href = '/auth';
 					show = false;